Journal Publicationsbooks

   

 

Year 2020

  1. The size dependent thermal diffusivity of water soluble CdTe quantum dots using dual beam thermal lens spectroscopy. Nideep, T. K., Ramya, M., Nampoori, V. P. N., & Kailasnath, M., Physica E: Low-dimensional Systems and Nanostructures, 116, 113724 (2020)..
  2. Energy transfer kinetics in Basic Fuchsin dye sensitized CdS quantum dots. Kuriakose, A. C., Nampoori, V. P. N., & Thomas, S. Materials Chemistry and Physics, 242, 122560 (2020).
  3. Enhancement of optical properties in Neutral Red Dye through energy transfer from CdS Quantum Dots. Kuriakose Alina C., Nampoori, V. P. N., & Thomas, S. Chemical Physics Letters, 738, 136851 (2020).
  4. Enhanced nonlinear optical properties of solution dispersed carbon dots decorated graphene oxide with varying viscosity. Vijesh, K. R., Musfir, P. N., Thomas, T., Vaishakh, M., Nampoori, V. P. N., & Thomas, S. Optics & Laser Technology, 121, 105776 (2020).
  5.  Improving the Optical and Thermoelectric Properties of Cs2InAgCl6 with Substitutional Doping: A DFT Insight, Bhamu, K. C., Haque, E., Praveen, C. S., Kumar, N., Yumnam, G., Hossain, M. A., & Sharma, G.. arXiv preprint arXiv:2001.07337 (2020)
  6.  Eco‐friendly thermal insulation material from cellulose nanofibre. Jose, J., Thomas, V., Raj, A., John, J., Mathew, R. M., Vinod, V., & Mujeeb, A., Journal of Applied Polymer Science, 137(2), 48272 (2020).
  7. Envisaging radio frequency magnetron sputtering as an efficient method for large scale deposition of homogeneous two dimensional MoS2, V J Cicily Rigi, M K Jayaraj, K J Saji, Applied Surface Science, 529, 147158, (2020).
  8. Investigation on the improved electrical and optical properties of trivalent boron-doped Cu2O thin film and fabrication of Cu2O: B/c-Si heterojunction diode, M Shaji, K K Markose, K J Saji, M K Jayaraj, Journal of Materials Science: Materials in Electronics 31,10724 (2020).
  9. Novel boron doped p-type Cu2O thin film as hole selective contact in c-Si solar cell, K K Markose, M Shaji, S Bhatia, P R Nair, K J Saji, A Antony, M K Jayaraj, ACS Applied Materials & Interfaces 12, 12972 (2020).
  10. Upconverting carbon quantum dots: An eco-friendly material for light energy harvesting and bio-imaging, A P Sunitha, K Sandeep, P Praveen, K J Saji, Materials Today: Proceedings, April (2020).
  11. Preparation and characterization studies on ternary Se rich chalcogenide glasses with Ga content for infrared photonics.S Soumya, Sheenu Thomas. AIP Conference Proceedings, 2244(1), 100007 (2020).

Year 2019

  1. Particle size and concentration effect on thermal diffusivity of water-based ZnO nanofluid using the dual-beam thermal lens technique. Ramya, M., Nideep, T. K., Nampoori, V. P. N., & Kailasnath, M. (2019). Applied Physics B, 125(9), 181.
  2. Understanding the role of alcohols in the growth behaviour of ZnO nanostructures prepared by solution based synthesis and their application in solar cells. Ramya, M., Nideep, T. K., Nampoori, V. P. N., & Kailasnath, M. (2019). New Journal of Chemistry, 43(46), 17980-17990.
  3. Concentration dependent thermo-optic properties of yellow emissive ZnO quantum dots. Ramya, M., Nideep, T. K., Varier, M. M., Nampoori, V. P. N., & Kailasnath, M. (2019).  Materials Research Ex-press, 6(12), 126208.
  4. The influence of ZnS buffer layer on the size de-pendent efficiency of CdTe quantum dot sensitized solar cell. Nideep, T. K., Ramya, M., & Kailasnath, M. (2019). Superlattices and Microstructures, 130, 175-181.
  5. MSA capped CdTe quantum dots for pH sensing application. Nideep, T. K., Ramya, M., Sony, U., & Kailasnath, M. (2019). Materials Research Express, 6(10), 105002.
  6. Facile synthesis of Au-Ag core shell and nanoalloy using femtosecond laser ablation and their optical characterization. Simon, J., Nampoori, V. P. N., & Kailasnath, M. (2019). Optik, 195, 163168.
  7. Facile synthesis of Au/CdS core-shell nanocomposites using laser ablation technique. Kuriakose, A. C., Nampoori, V. P. N., & Thomas, S. (2019). Materials Science in Semiconductor Processing, 101, 124-130.
  8. Tunable linear and non linear optical properties of GeSeSb chalcogenide glass with solute concentration and with silver doping. Viswanathan Anupama, & Thomas, S. (2019). Journal of Alloys and Com-pounds, 798, 424-430.
  9. Variations in the linear and nonlinear refractive indices of chalcogenide glass thin films for photonic applications. Musfir, P. N., Nampoori, V. P. N., & Thomas, S. (2019).  Materials Research Express, 6(11), 115207.
  10. Application of temporal correlation algorithm to interpret laser Dop-pler perfusion imaging. Ansari, M. Z., & Mujeeb, A. (2019). Lasers in medical science, 34(9), 1929-1933.
  11. Interpreting Blood Perfusion Variations in Laser Doppler Imaging. Ansari, M. Z., & Mujeeb, A. (2019). EC Cardiology, 6, 621-625.
  12. Tuning of photo thermal and linear optical properties of eosin B dye with surfactant-free gold nanoparticles. Fathima, R., & Mujeeb, A. (2019). Nanotechnology, 31(11), 115402.
  13. Fabrication and characterization of p-type boron doped Cu2O thin film and Cu2O: B/n-Si heterojunction. Shaji, M., Saji, K. J., & Jayaraj, M. K., Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVI, 11089 (2019).
  14. Nonlinear optical studies of calcium tartrate crystals. Rejeena, I., Thomas, V., Mathew, S., Elizabeth, A., Radhakrishnan, P., & Mujeeb, A. (2019). Journal of Taibah University for Science, 13(1), 611-615.
  15. Tuning thermo-optic properties of BF and NR dyes using plasmonic silver nanoparticles. Pathrose, B. P., Prakash, A., Nampoori, V. P. N., Radhakrishnan, P., & Mujeeb, A. (2019).  Optical Materials, 92, 399-404.
  16. Carbon dots decorated graphene oxide nanosheets prepared by a novel technique with enhanced nonlinear optical properties, Vijesh K R, Mathew S, Nampoori V P N and Sheenu Thomas (2019) AIP Advances. 9 015219.
  17. Investigations on Frequency and Temperature dependence of AC conductivity and dielectric parameters in Ge20Ga5Sb10S65 quaternary Chalcogenide glass, P N Musfir, S Mathew, V P N Nampoori, Sheenu Thomas, Optik 182, 1244-1251 (2019). 
  18. Microring embedded hollow polymer optical fiber for Refractive Index Sensing. Anand, V. R., Mathew, S., Linslal, C. L., Radhakrishnan, P., & Kailasnath, M, Journal of Luminescence (2019).
  19. Defect passivation introduced through surface reconstruction in TOPO capped CdSe quantum dots for enhancement in quantum yield, Boni Samuel, Mathew S, V P N Nampoori, A Mujeeb, Optical Materials 88 (2019) 204-209.
  20. Thermal diffusivity of neutral red dye using dual beam thermal lens technique: A comparison on the effects using nano pulsed laser ablated silver and gold nanoparticles, Anitha Prakash, Bini P. Pathrose, V. P. N. Nampoori, P. Radhakrishnan, and A. Mujeeb, Physica E: Low-dimensional Systems and Nanostructures, 107 203-208 (2019)
  21. Oblique angle deposited silver is-lands on Ge20Se70Te10 film substrate for Surface Enhanced Infrared Spectroscopy, Ajina Cheruvalath, V P N Nampoori, Sheenu Thomas, Sensors and Actuators B:Chemical 287 (2019) 225 –230.
  22. Fabrication of p-SnO/n-SnO2 Transparent pn Junction Diode by Spray Pyrolysis and Extraction of Device‘s Intrinsic Parameters, Eqbal, Ebitha, Rakhy Raphael, K. J. Saji, and E. I. Anila. Materials Letters 247, 211 (2019).
  23. Role of Structure and Composition on the Performances of P-Type Tin Oxide Thin-Film Transistors Processed at Low-Temperatures, Barros, K. J. Saji, J. C. Waerenborgh, P. Barquinha, L. Pereira, E. Carlos, R. Martins, E. Fortunato, Nanomaterials 9 (3), 320 (2019)
  24. Green Synthesized Plasmonic Silver Systems for Potential Non-Linear Optical Applications: Optical Limiting and Dual Beam Mode Matched Thermal Lensing, Thomas, Jeena, Prakash Perikaruppan, Vinoy Thomas, Jancy John, Raji Mary Mathew, Joice Thomas, Ibrahimkutty Rejeena, Sebastian Mathew, and Abdulhassan Mujeeb. Australian Journal of Chemistry.
  25. Nonlinear optical limiting and dual beam mode matched thermal lensing of nano fluids containing green synthesized copper nanoparticles, John, Jancy, Raji Mary Mathew, I. Rejeena, R. Jayakrishnan, S. Mathew, Vinoy Thomas, and A. Mujeeb. Journal of Molecular Liquids (2019).
  26. Studies on growth and characterization of (E)-N′-[4-(dimethylamino) benzylidene]-4-hydroxybenzohydrazide hemihydrate: a nonlinear optical material. Subashini, A., Poornima Priyadharsani, K. Thamaraiselvi, V. Veeramani, Priya Rose, Reji Philip, Helen Stoeckli-Evans, K. Ramamurthi, and R. Ramesh Babu.  Journal of Materials Science: Materials in Electronics 30, no. 3 (2019): 2638-2646.
  27. Enhancement of Defect States Assisted Thermal Diffusivity in Solution-Processed GeSeSb Chalcogenide Glass Matrix on Silver Incorporation , Anupama Viswanathan, Sony Udayan, PN Musfir, VPN Nampoori and Sheenu Thomas, Journal of Non-Crystalline Solids, 503-504, 151-157 (2019).
  28. Deposition of tin disulfide thin films by thermal evaporation and sulphurization, K Anlin Lazar, V J Cicily Rigi, P Hajara, P Praveen, K J Saji, AIP Conference Proceedings, 2162, 020078 (2019).
  29. Photocatalytic degradation of methyl orange using MgFe2O4@TiOcore-shell nanoparticles, Rehana P Ummer, Pramod Gopinath, Nandakumar Kalarikkal, Sabu Thomas, AIP Conference Proceedings 2082, 030038 (2019)
  30. Enhanced Room Temperature Ferromagnetism in Chemically Synthesised Co3O4 Nanoparticles, Lakshmi, Anniemol Thomas and Pramod Gopinath, AIP Conference Proceedings 2082, 030022 (2019)
  31. Tunable Optical Bandgap in Ternary Ge-As-S Chalcogenide Glass, P N Musfir, S Soumya, C V Anees Mehaboob, V Raseem Ali, Sheenu Thomas, AIP Conference Proceedings, 2082(1), 030024 (2019).

 

Year 2018

  1. Roopa Venkataraj, Arindam Sarkar, C. P. Girijavallabhan, P. Radhakrishnan, V. P. N. Nampoori, and M. Kailasnath, “Fluorescence resonance energy transfer based fluoride ion sensor,” Appl. Opt. 57, 4322-4330 (2018).
  2. Anand, V. R., Mathew, S., Linslal, C. L., Peter, J., Radhakrishnan, P., & Kailasnath, M. Tunable amplified spontaneous emission from dye doped hollow polymer optical fiber. Journal of Luminescence, (2018).
  3. Ramya, T. K. Nideep, K. R. Vijesh, V. P. N. Nampoori, and M. Kailasnath, “Synthesis of stable ZnO nanocolloids with enhanced optical limiting properties via simple solution method,” Opt. Mater. (Amst). 81, (2018).
  4. K. Nideep, M. Ramya, V. P. N. Nampoori, and M. Kailasnath, “Optik Optical limiting and optical properties of water soluble CdTe quantum dots prepared through a colloidal chemical route,” Opt. – Int. J. Light Electron Opt. (September), 0–1 (2018).
  5. Two photon induced amplified spontaneous emission at low threshold from Styryl 7 dye incorporated DNA template, Sony Udayan, Raj Sha M M, Mathew Sebastian, V.P.N. Nampoori, Sheenu Thomas, Optical Materials, 86, 492–497 (2018).
  6. Priyamvada V C, Ajina C, Radhakrishnan P, Coating configuration dependency of fiber optic silver coated U bent plasmonic sensor surfaces in concentration sensing measurements, Optoelectronics Letters,Vol 14,No.6,1 November 2018.
  7. Retheesh R, Ansari M Z, Radhakrishnan P, Mujeeb A. Application of qualitative bio-speckle methods for the identification of scar region in agreen orange, Mod. Phys. Lett. B (MPLB) (2018) 32(9) 1850113.
  8. Ansari M Z, Mujeeb A and Nirala A K.  Assessment of biological leaf tissue using biospeckle laser imaging technique. Laser Phys. 28 (2018) 065608.
  9. Ansari M Z, Mujeeb A. Modelling of laser speckles of heterogeneous dynamics in drying and aging of paint dispersions using a view based temporal template methgod . Laser Phys. 28 (2018) 085603.
  10. Ansari M Z, Mujeeb A. Assessment of microscopic repair dynamics in self-healing polymer by modelling laser speckle images . Laser Phys. 28 (2018) 126003.
  11. Retheesh R, Thomas D, Ansari M Z, Varghese B, Radhakrishnan P and Mujeeb A. Applica-tion of laser biospeckle technique for the analysis of artificially introduced local dynamics in apple fruit. Laser Phys. 28 (2018) 115601.
  12. M. Raj Sha, S. Mathew, S. Udayan, V. P. N. Nampoori, A. Mujeeb, Ultra-pure silicon nanofluid by laser ablation: thermal diffusivity studies using thermal lens technique. , Applied Physics B, 19 0ctober 2018.
  13. R Fathima and A Mujeeb., Laser induced synthesis and concentration dependent thermo-optical properties of silver-gold alloy nanoparticles. 2018 Mater. Res. Express 5 125011.
  14. Anitha Prakash, Bini P. Pathrose, S. Mathew, V. P. N. Nampoori, P. Radhakrishnan, and A. Mujeeb. “Variations in thermo-optical properties of neutral red dye with laser ablated gold nanoparticles.” Optical Materials 79 (2018): 237-242.
  15. P. Sunitha, P. Praveen, M. K. Jayaraj, K. J. Saji, Upconversion and downconversion photoluminescence and optical limiting in colloidal MoS2 nanostructures prepared by ultrasonication, Optical Materials 85, (2018): 61-70.
  16. P. Sunitha, P. Hajara, M. Shaji, M. K. Jayaraj, K. J. Saji, Luminescent MoS2 Quantum Dots with Reverse Saturable Absorption Prepared by Pulsed Laser Ablation, Journal of Luminescence, 203, (2018): 313-321.
  17. Thomas, Jeena, Prakash Periakaruppan, Vinoy Thomas, Jancy John, S. Mathew, Titu Thomas, Jasmine Jose, I. Rejeena, and A. Mujeeb. “Morphology dependent nonlinear optical and photocatalytic activity of anisotropic plasmonic silver.” RSC Advances 8, no. 72 (2018): 41288-41298.
  18. Adrine Antony Correya, S. Mathew, V. P. N Nampoori and A. Mujeeb, Structural and optical characterization of hexagonal nanocrystalline bismuth-bismuth oxide core-shell structures synthesized at low temperature, Optik – International Journal for Light and Electron Optics, vol. 157, pp. 930-935, 2018.
  19. Bini P. Pathrose, Anitha Prakash, V. P. N. Nampoori, P. Radhakrishnan, H. Sahira and A. Mujeeb, Lasing and spectral characteristics of neutral red dye, Optik, vol. 156, pp. 988–993, 2018.
  20. Bini P. Pathrose, Anitha Prakash, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Investigations of the of Ag nanosol impact on the nonlinear optical properties of neutral red dye, Opt Quant Electron 50 (2018) 26.
  21. Sony Udayan, Mathew Sebastian, K. R. Vijesh, V. P. N. Nampoori and Sheenu Thomas, Thermal diffusivity and lifetime studies of Styryl 7 dye on DNA-CTMA Complex, Journal of Luminescence, vol. 194, pp. 428–432, 2018.
  22. Concentration dependent variation of thermal diffusivity in highly fluorescent carbon dots using dual beam thermal lens technique, K.R. Vijesh, U. Sony, M. Ramya, S. Mathew, V.P.N. Nampoori, Sheenu Thomas, International Journal of Thermal Sciences, 126, 137–142 (2018).
  23. Novel amorphous nanowires from solution processed Ge25Se65Sb10 chalcogenide glass, Anupama Viswanathan and Sheenu Thomas, Journal of Materials Science: Materials in Electronics, 29, 18231–18237 (2018)
  24. Band gap tuning and enhancement of Two Photon Absorption in Zinc Tellurite glasses via thermal Poling, Rose Leena Thomas and Sheenu Thomas, J.Emerging Tech.and Innovative Research, 5(6), 72-77 (2018).
  25. Surface enhanced infrared absorption from Ge20Se70Te10 film with silver island over layer, Ajina Cheruvalath and Sheenu Thomas, Indian J.Sci.Res. 18(1), 75-78 (2018).
  26. Studies on the interaction between 7-(dimethyl amino)-4-(trifluoromethyl)-2H-1-benzopyran-2-one and cadmium sulphide quantum dots, Alina C. Kuriakose, C. Pradeep, V.P.N. Nampoori, Sheenu Thomas, Optical Materials, 78, 113 -117 (2018).

 

Year 2017

  1. Mathew, B. Samuel, A. Mujeeb, M. Kailasnath, V. P. N. Nampoori and C. P. Girijaval-labhan, Effect of Au coating on optical properties of CdS nanoparticles and their optical limiting studies,‖ Optical Materials, vol. 72, pp. 673-679, 2017.
  2. Roopa Venkataraj, C. P. Girijavallabhan, P. Radhakrishnan, V. P. N. Nampoori and M. Kailasnath, Photochemical Degradation of Curcumin: a Mechanism for Aqueous Based Sensing of Fluoride, Journal of fluorescence, vol. 27, no. 6, pp. 2169-2176, 2017.
  3. Sony Udayan, Vijesh Kavumoottil Ramachandran, Mathew Sebastian, Pradeep Chandran, Vadakkedath Parameswaran Narayanan Nampoori and Sheenu Thomas, Effect of DNA-CTMA complex on optical properties of LDS 821 dye, Optical Materials, vol. 69, pp. 49-53, 2017.
  4. R. Anand, S. Mathew, Boni Samuel, P. Radhakrishnan, and M. Kailasnath, Thermo-optic tuning of whispering gallery mode lasing from a dye-doped hollow polymer optical fi-ber, Opt. Lett., vol. 42, pp. 2926-2929, 2017.
  5. Boni Samuel, R. Retheesh, Md Zaheer Ansari, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Cross-correlation and time history analysis of laser dynamic specklegram imag-ing for quality evaluation and assessment of certain seasonal fruits and vegetables, Laser Phys., vol. 27, 105601, 2017.
  6. Retheesh, Boni Samuel, P. Radhakrishnan, and A. Mujeeb, Detection and Analysis of Micro Cracks in Low Modulus Materials with Thermal Loading using Laser Speckle Interfer-ometry, Russian Journal of Nondestructive Testing, vol. 53, no. 3, pp. 236–242, 2017.
  7. Suneetha Sebastian, M. Kailasnath, V. P. N. Nampoori and S. Asokan, Ag nanowire-assisted low threshold WGM lasing from polymer optical fiber, Optics Letters, vol. 42, no. 19, pp. 3820-3823, 2017.
  8. Kalle Koskinen, Abdallah Slablab, Sasi Divya, Robert Czaplicki, Semen Chervinskii, Madanan Kailasnath, Padmanabhan Radhakrishnan, and Martti Kauranen, Bulk second-harmonic generation from thermally evaporated indium selenide thin films, Optics Letters, vol. 42, no. 6, 2017.
  9. Cheruvalath Ajina, Sebastian Indu, Sebastian Mathew, V. P. N. Nampoori and Thomas Sheenu, Effect of midgap defect states on the optical properties of Ge20 Se 70 Te 10 nano colloids, Optical Materials, vol. 72, pp. 265-269, 2017.
  10. Md Zaheer Ansari and A. Mujeeb, Application of motion history image (MHI) on dynamic fluorescent imaging for monitoring cerebral ischemia induced by occlusion of middle cerebral artery (MCA) in mouse brain, Biomedical Spectroscopy and Imaging, vol. 6, no. 3-4, pp. 135-142, 2017.
  11. Jaison Peter, Mahesh Kumar, V. R. Anand, Boni Samuel, Adrine Antony Correya, P. Radhakrishnan, V. P. N. Nampoori and M. Kailasnath, Photophysical studies and computational modelling of Rhodamine B as calculated by B3LYP/6-31 G (d) and TD-DFT/PCM method, Journal of Fluorescence.
  12. Bini Pathrose, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Influence of Femto-second Laser Ablated Silver Nanoparticles on the Nonlinear Optical Properties of Basic Fuchsin dye, Plasmonics, vol. 12, no. 4, pp. 953–959, 2017.
  13. Bini Pathrose, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Solvent effect on the Femtosecond laser induced two-photon emission from Rhodamin 6G, Journal of photochemistry and photobiology,  A:Chemistry , vol. 333, pp. 26-32, 2017.

 

Year 2016

  1. Solvent effects on lasing characteristics for Rh B laser dye, Jaison Peter, Mahesh Kumar, V. R. Anand, RasoolSaleem, Ananthu Sebastian, P. Radhakrishnan, V. P. N. Nampoori, C. P. G. Vallabhan, RadhakrishnaPrabhu, and M. Kailasnath,Journal of Luminescence, Volume 169, Part A, pp.227-232, January 2016.
  2. Saltmarsh, G.A. Kumar , M.Kailasnath , VittalShenoy, C. Santhosh , D.K. SardarSpectroscopic characterizations of Er doped LaPO4 submicron phosphors prepared by homogeneous precipitation method, Optical Materials, 24-29, 53 , 2016.
  3. Kumar, Nicolas R. Balli, M.Kailasnath, Spectroscopic and magnetic properties of Neodymium doped GdPO4 submicron stars prepared by solvothermal method, Journal of Alloys and Compounds, 672, 668-673, 2016.
  4. Photophysical studies and computational modelling of Rhodamine B as calculated by B3LYP/6-31 G (d) and TD-DFT/PCM method, Jaison Peter, Mahesh Kumar, V. R. Anand, Boni Samuel, Adrine Antony Correya, P. Radhakrishnan, V. P. N. Nampoori and M. Kailasnath, Journal of Fluorescence (Accepted).
  5. Tuning whispering gallery lasing modes from polymer fibers under tensile strain, Linslal C L, M. Kailasnath, S. Mathew, T. K. Nideep, P. Radhakrishnan,V. P. N. Nampoori, And C. P. G. Vallabhan, Optics letters, Vol. 41, No.3, pp. 551-554 (2016).
  6. A fiber optic biosensor for the detection of cholesterol levels based on chitosan coated long period grating ,C. Bobby Mathews, T. M. Libish, B. Kaushalkumar, V. Vivek, RadhakrishnaPrabhu, and P. Radhakrishnan, , Vol.12, 1, 1 January 2016, pp. 23-26.
  7. Spectral and Non Radiative Decay Studies of Lead Di Bromide Single Crystals by Mode Matched Thermal Lens Technique., Rejeena, I., B. Lillibai, V. Thomas, V. P. N. Nampoori, and P. Radhakrishnan. Journal of fluorescence (2016): 1-5.
  8. Performance of polymer/CdS organic-inorganic hybrid LEDs., Pradeep, C., S. Mathew, M. A. G. Namboothiry, C. P. G. Vallabhan, P. Radhakrishnan, and V. P. N. Nampoori. Optoelectronics Letters 12, no. 2 (2016): 110-114.
  9. Investigations of intensity dependant nonlinear optical properties of betanin/ZnO composites embedded in PVA.,Thankappan, Aparna, V. P. N. Nampoori, and Sabu Thomas. Optics & Laser Technology 83 (2016): 28-34.
  10. Optical limiting properties of in situ reduced graphene oxide/polymer nanocomposites, Muralidharan, M. N., S. Mathew, A. Seema, P. Radhakrishnan, and Thomas Kurian. Materials Chemistry and Physics (2016).
  11. Effect of Femtosecond Laser Ablated Silver Nanoparticles in the thermo-optic properties of Basic Fuchsindye., Pathrose, Bini, V. P. N. Nampoori, P. Radhakrishnan, H. Sahira, and A. Mujeeb. Optik-International Journal for Light and Electron Optics (2016).
  12. Use of Laser Biospeckle for the Evaluation of Fruit Ripening ,Retheesh R, Boni Samuel, P. Radhakrishnan, V. P. N. Nampoori and A. Mujeeb , Journal of Pure Applied and Industrial Physics, Vol.6(5), 65-70, May 2016.
  13. Numerical Processing Techniques for the Detection and Analysis of Biospeckle Activity, Retheesh R, Boni Samuel, A. Mujeeb, International Journal of Science, Engineering and Technology Research (IJSETR) Volume 5, Issue 4, April 2016.
  14. G. Sreeja, Cheruvalathu Ajina, R. Reshmi, E. I. Anila, Thomas Sheenu and M. K. Jaya-raj, Effect of thickness on nonlinear absorption properties of graphite oxide thin films,‖ Op-tical Materials, vol. 60, pp. 450-455, 2016.
  15. Indu Sebastian, Dayal Chakraborty, Nampoori V. P. N, P. Radhakrishnan and Sheenu Thomas, Fabrication and Characterization of Chalcogenide Glass Based Waveguide Struc-tures,‖ Sci. & Soc14 (1), pp. 33-42, 2016.
  16. J. Saji, K. Tian, M. Snure, and A. Tiwari, 2D Tin Monoxide—An Unexplored p-Type van der Waals Semiconductor: Material Characteristics and Field Effect Transistors,‖ Ad-vanced Electronic Materials, vol. 2, no. 4, pp. 1500453, 2016.
  17. P. V. Subbaiah, K. J. Saji and A. Tiwari, Atomically thin MoS2: A versatile non-graphene 2D material,‖ Advanced Functional Materials, vol. 26, no. 13, pp. 2046-2069, 2016.
  18. J. Saji, Y. P. V. Subbaiah, K. Tian and A. Tiwari, P-type SnO thin films and SnO/ZnO heterostructures for all oxide electronic and optoelectronic device applications,‖ Thin Solid Films, vol. 605, pp. 193-201, 2016.
  19. Lucia Caspani, R. P. M. Kaipurath, Matteo Clerici, Marcello Ferrera, Thomas Roger, J. Kim, Nathaniel Kinsey, Monika Pietrzyk, Andrea Di Falco, Vladimir M. Shalaev, Alexandra Boltasseva and D. Faccio, Enhanced nonlinear refractive index in ε-near-zero materials,‖ Phys. Rev. Lett., vol. 116, no. 23, pp. 233901, 2016.
  20. M. Kaipurath, Monika Pietrzyk, L. Caspani, T. Roger, M. Clerici, C. Rizza, A. Ciattoni, Andrea Di Falco and D. Faccio, Optically induced metal-to-dielectric transition in Epsilon-Near-Zero metamaterials,‖ Scientific reports 6, 2016.
  21. Retheesh, B. Samuel, P. Radhakrishnan, V. P. N. Nampoori and A. Mujeeb, Analysis of various surface roughness parameters of low modulus aerospace materials using speckle photography,‖ J. Aeronaut. Aerosp. Eng, vol. 5, no. 1, 2016.
  22. Bini Pathrose, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Investigations on the third order nonlinear optical properties of Basic Fuchsin dye using zscan technique,‖ Optik, vol. 127, pp. 7717–7725, 2016.
  23. Bini Pathrose, V. P. N. Nampoori, P. Radhakrishnan and A. Mujeeb, Stability, Size and Optical Properties of Silver Nanoparticles Prepared by Femtosecond Laser Ablation,‖ J Na-nomater Mol Nanotechnol, 5:3, 2016.
  24. Koshy Obey, Thankappan A. Vibin, Bini, S. Thomas and A. Mujeeb, Naked Eye Detec-tion of Hydrogen Peroxide by Laser Ablated Silver Nanoparticle Coated Flexible Pa-per,‖ Journal of Bionanoscience, vol. 10, no. 5, pp. 377-380, 2016 .
  25. Peter et al., Solvent effects on lasing characteristics for Rh B laser dye,‖ J. Lumin., vol. 169, pp. 227–232, 2016.
  26. L. Linslal et al., Tuning whispering gallery lasing modes from polymer fibers under ten-sile strain,‖ Opt. Lett., vol. 41, no. 3, p. 551, 2016.
  27. B. Mathews, T. M. Libish, B. Kaushalkumar, V. Vivek, R. Prabhu, and P. Radhakrish-nan, A fiber optic biosensor for the detection of cholesterol levels based on chitosan coated long period grating,‖ Optoelectron. Lett., vol. 12, no. 1, pp. 23–26, 2016.
  28. Pathrose, V. P. N. Nampoori, P. Radhakrishnan, H. Sahira, and A. Mujeeb, Effect of femtosecond laser ablated silver nanoparticles in the thermo-optic properties of basic fuchsin dye,‖ Optik (Stuttg)., vol. 127, no. 7, pp. 3684–3687, 2016.

 

Year 2015

  1. Size dependent variation of thermal diffusivity of CdSe nanoparticles based nano fluid using laser induced mode-matched thermal lens technique, Anju. K. Augustine & S. Mathew & C. P. Girijavallabhan &P. Radhakrishnan & V. P. N Nampoori & M. Kailasnath; J Opt 44(1):85–91; (2015).
  2. Spectral modification of mode structures in silver nanoparticle doped Rhodamine 6G, Arindam Sarkar, C.L. Linslal, V.P.N. Nampoori, Optics & Laser Technology, Volume 75, 182-187, (2015).
  3. Enhanced random lasing from a colloidal CdSe quantum dot-Rh6G system, Anju K Augustine, P Radhakrishnan, V P N Nampoori and M Kailasnath.  Laser Phys. Lett. 12(2015) 025006 (4pp).
  4. Charge and Heat Transfer Mechanism in Directly Coupled CdSe‑Metal Nano hybrids, K. Augustine ,C. P. Girijavallabhan ,V. P. N Nampoori & M. Kailasnath; 2015(accepted in Journal of electronic materials).
  5. Highly efficient betanin dye based ZnO and ZnO/Au Schottky barrier solar cell,  Aparna thankappan; S.  Divya; Augustine  K Anju; C. P. Girijavallaban; P. Radhakrishnan; Thomas Sheenu ; V. P. N. Nampoori ;Thin Solid Films583 (2015) 102–107.
  6. Analysis and simulation of semiconductor laser dynamics with optoelectronic delay feedback, Varghese Bejoy, Sivasankaran Rajesh, Vadakkedath Madhom Nandakumaran.Turk J Phys(2015) 39: 60 – 68.
  7. Microring embedded hollow polymer fiber laser, C. L. Linslal, S. Sebastian, S. Mathew, P. Radhakrishnan, V. P. N. Nampoori, C. P. Girijavallabhan, and M. Kailasnath, Applied Physics Letters106, (2015) 131101.
  8. Surface effects on photoluminescence and optical nonlinearity of CdS quantum dots stabilized by sulfonated polystyrene in water. Jolly V A, Pradeep C, Philip K, Nampoori P N V, George E K, Journal of Physical ChemistryC, 119, 15(2015)., pp 8280-8289.
  9. Angular dependent light emission from planar waveguides, Jaison Peter, Radhakrishna Prabhu, P. Radhakrishnan, C. P. G. Vallabhan, V. P. N. Nampoori and M. Kailasnath. J. Appl. Phys. 117(2015), 015301. 
  10. Effect of ZnS shell on optical properties of CdSe–ZnS core–shell quantum dots, Mathew, S., Bhardwaj, B. S., Saran, A. D., Radhakrishnan, P., Nampoori, V. P. N., Vallabhan, C. P. G., & Bellare, J. R… Optical Materials, 39(2015), 46-51. 
  11. Effect of silver nanoparticles on fuorescence and nonlinear properties of naturally occurring betacyanin dye, Arindam Sarkar, Aparna Thankappan, and V.P.N. Nampoori, Mater. 39,211-217 (2015). 
  12. Enhanced performance of ZnO based dye-sensitized solar cell decorated with TiN nanoparticles, Aparna Thankappan, S.Divya, C.P. Girijavallaban, P. Radhakrishnan, Sheenu Thomas, and V.P.N. Nampoori , Laser Phy. Lett. 
  13. Bio inspired hybrid materials for photonic device applications, Aparna Thankappan, Sheenu Thomas and VPN Nampoori,Laser Phy. Lett. 
  14. Chemically tapered multimode optical fiber probe for fluoride detection based on fluorescence quenching of Curcumin, Roopa Venkataraj, V P N Nampoori, P Radhakrishnan, M Kailasnath, IEEE Sensors Journal 2015.
  15. Formation of Au-Ag nanoalloy through Au core /Ag shell intermediate phase by laser ablation Chemistry Physics 628 (2015) 25-29 ,Suneetha Sebastian∗, C.L. Linslal, C.P.G. Vallabhan, V.P.N. Nampoori,P. Radhakrishnan, M. Kailasnath.
  16. B. Pathrose, V. P. N. Nampoori, P. Radhakrishnan, H. Sahira, and A. Mujeeb, Solvent dependency in the quantum efficiency of 4-[(4-aminophenyl)-(4-imino-1-cyclohexa-2, 5- dienylidene) methyl] aniline hydrochloride,‖ J. Fluoresc., vol. 25, no. 3, pp. 739–744, 2015

 

Year 2014

  1. Pumping scheme dependent multimode laser emission from free-standing cylindrical microcavity”, Jaison P, RasoolS, Ananthu S, Radhakrishnan P, Nampoori V P N, Girijavallabhan C P, Kailasnath M, , 320, 125, (2014).
  2. Non resonant excitonic effects on the third order nonlinear properties of TiO2: From amorphous to rutile phase”, Divya S, Indu S, Nampoori V P N, Radhakrishnan P, Mujeeb A, Laser Technol., 56, 207–210, (2014).
  3. Evaluation of nonlinear optical parameters of TiN/PVA nanocomposite– A comparison between semi empirical relation and Z-Scan results, Divya S, Nampoori V P N, Radhakrishnan P, Mujeeb A, Current Applied Physics, 14(1), 93–98, (2014).
  4. Multimode laser emission from free-standing cylindrical microcavities, Jaison P, Radhakrishnan P, Nampoori V P N, Kailasnath M, , 149, 204, (2014).
  5. Electrobyte/Photoanode engineered solar cells” 115 064501 – 5 2014: JAP (Journal of applied Physics, Divya, Aparna Thankappaan, CPG Vallabhan, VPN Nampoori, R. Radhakrishnan and Mujeeb.
  6. Random Lasing with enhanced Pbhotostability of silver nanoparticle doped polymer optical fiber laser Sebastian, CL Linslal, CPG Vallabhan, VPN Namboori, P. Radhakrishnan and M.Kailasnath,  Laser Phys.Letter (2014).
  7. Thermal deformation analysis of aluminium hictsink using Electronic Spectlle Pattern interfermely. R. Ratheesh, Radhakrishnan, Rakesh kumar singh, A Mujeeb, International Journal of advances in engineering and Technology, (2014).
  8. Multimode Laser emission from dye-dopet hollow polymer optical fiber.L.Linslal, Jaisen Peter, S,Mathew, M.Kailasnath, pramana, Vol – 82, issue – 2 (2014).
  9. Size Dependent Optical Nonlinearity and Optical Limiting Properties of Water Soluble CdSe Quantum Dots. Anju K. Augustine, S.Mathew, P. Radhakrishnan, V. P. N. Nampoori, and M. Kailasnath; Journal of Nanoscience,Volume 2014, Article ID 623742, 7 pages.
  10. Influence of pH on the thermo-optic properties of CdSe QDs prepared by a microwave irradiation method Anju K Augustine, C P Girijavallabhan, V P N Nampoori and M Kailasnath Laser Phys. Lett. 11 (2014) 115901 (6pp).
  11. Rapid synthesize of gold nanoparticles by microwave irradiation method and its application as an optical limiting material.   Anju K. Augustine∗, V.P.N. Nampoori, M. Kailasnath; Optik 125 (2014) 6696–6699.
  12. Tuning of particle size and bandgap of CdSe nanoparticles prepared by reflux method. Anju K Augustine, V P N Nampoori and M Kailasnath; Asian Journal of physics; 23:4 (2014) 683-686.
  13. Studies of nonlinear optical properties of PicoGreen dye using Z-scan technique., C Pradeep, S Mathew, B Nithyaja, P Radhakrishnan and V P N Nampoori, Applied Physics A, 115, 1, pp 291-295, (2014).
  14. Electrolyte/photoanode engineered performance of TiObased DSSC. Divya S,Thankappan A, Vallabhan CPG, Nampoori VPN, Radhakrishnan P, Mujeeb A (2014) Appl.Phys 115(6) 064501.
  15. Experimental varification of localized defect states in Ga-Ge-Se nano colloidal Solution”Indu Sebastian, V P N Nampoori, P Radhakrishnan and Sheenu Thomas , J.Mater.Sci.49,3732-3735(2014) doi10.1007/s10853-014-8084-8.
  16. Band gap tunning and nonlinear optical characterization of TiO2-SiONano composites with respect to composition and phase opt mater. Divya S, Sebastian I, Nampoori VPN, Radhakrishnan P, Mujeeb A 201437,433-438.
  17. ASE and photostability measurements in dye doped step index, graded index and hollow polymer optical fiber. Jaison Peter, C. P. G. Vallabhan, P. Radhakrishnan, V. P. N. Nampoori, & M. Kailasnath,. Optics & Laser Technology, 63, 34-38 (2014).
  18. Multimode Laser Emission from Free-standing Cylindrical MicrocavitiesJaison Peter, P. Radhakrishnan, V. P. N. Nampoori, & M. Kailasnath, Journal of Luminescence 05/2014; 149:204-207 (2014).
  19. Pumping scheme dependent multimode laser emission from free-standing cylindrical microcavity. Optics Communications Jaison Peter, Rasool Saleem, Ananthu Sebastian, P. Radhakrishnan, V. P. N. Nampoori, C. P. G. Vallabhan & M. Kailasnath01/2014; 320:125–128 (2014).
  20. Characteristics of Whispering Gallery Mode Laser Emission from Free-standing Cylindrical Microcavity”Jaison Peter, C. P. G. Vallabhan, V. P. N. Nampoori, P. Radhakrishnan, & M. Kailasnath., OPEN JOURNAL OF MODERN PHYSICS ISSN(Print): 2372-627X ISSN(Online): 2372-6288 VOLUME 1, NUMBER 2, JUNE 2014.
  21. Thermal deformation analysis of aluminium heat sink using electronic speckle pattern interferometry”R, P.Radhakrishnan, Rakesh Kumar Singh, A.Mujeeb, International Journal of Advances in Engineering & Technology, Vol.7, Issue 2, pp. 431-437, May, 2014.
  22. Optical nonlinear investigations on morphology controlled growth of ZnO crystals Aparna Thankappan, C.L. Linslal,S.Divya, P.V. Sabitha,Sheenu Thomas, V.P.N. Nampoori Optics & Laser Technology 64 (2014) 133–139.
  23. Novel composites based on polymer micro-rods for photonic device applications” Aparna Thankappan, Sheenu Thomas, V.P.N. Nampoori Optics & Laser Technology 58 (2014) 63–70.
  24. A Simple Fluorescence based Optical Fiber sensor for Fluoride ions. R. Venkataraj, N. V P N, P. Radhakrishnan, and M. Kailasnath. 12th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optical Society of America, 2014), paper M4A.15.
  25. Chemically tapered multimode optical fiber probe for fluoride detection based on fluorescence quenching of Curcumin, Roopa Venkataraj, V P N Nampoori, P Radhakrishnan, M Kailasnath, IEEE Sensors Journal 2015 (Accepted).
  26. Variations in Fluorescence Quantum Yield of Basic Fuchsin with Silver nanoparticles prepared by Femtosecond Laser Ablation, Bini Pathrose , H Sahira, V P N Nampoori , P Radhakrishnan , A Mujeeb, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 128 (2014) 522–526.
  27. Measurement of absolute fluorescence quantum yield of Basic Fuchsin solution using dual-beam thermal lens technique”, Bini Pathrose , V P N Nampoori  , P Radhakrishnan , A Mujeeb, J Fluoresc, DOI 10.1007/s10895-014-1369-0.
  28. Random lasing with enhanced photostability of silver nanoparticle doped polymer optical fiber laser” S Sebastian, C L Linslal, C P G Vallabhan, V P N Nampoori,P Radhakrishnan and M Kailasnath. Laser Phys 11 (2014) 055108 (5pp).
  29. Laser induced augmentation of silver nanospheres to nanowires inethanol fostered by Poly Vinyl Pyrrolidone, Suneetha Sebastian∗, C.L. Linslal, C.P.G. Vallabhan, V.P.N. Nampoori,P. Radhakrishnan, M. Kailasnath Applied Surface Science 320 (2014) 732–735.
  30. Femtosecond laser induced emission enhancement in Rhodamine6G Journal of Photochemistry and Photobiology Suneetha Sebastian**, Ajina C, C. P. G Vallabhan, V. P. N. Nampoori, P. Radhakrishnan, M. Kailasnath –A:Chemistry 288(2014) 34-38.
  1.    

Year 2013

  1. Fabrication and Photostability of Rhodamine-6G Gold Nanoparticle Doped Polymer Optical Fiber,Suneetha Sebastian, Ajina C, C. P. G Vallabhan, V. P. N. Nampoori, P. Radhakrishnan, M. Kailasnath, PHYS. LETT. Vol. 30, No. 11 (2013) 118101.
  2. Solvent effect on the third order optical nonlinearity and optical limiting ability of betanin natural dye extracted from red beet root, Aparna Thankappan, Sheenu Thomas, V.P.N. Nampoori, Optical Materials 35 (2013) 2332–2337.
  3. Optical limiting performance of ZnOnanoflakes and nanoplates embedded in PVA matrix, Aparna Thankappan, Sheenu Thomas and VPN Nampoori, QScience Connect 2013.33 10.5339.
  4. Optical limiting performance of betanin natural dye, Aparna Thankappan, Sheenu Thomas, V.P.N. Nampoori,NCMA 2013,Tiruchirappalli, Tamilnadu, 4-5 April 2013.
  5. Optical characterization of ZnOnanoplates stabilized with pva for optical limiting applications, Aparna Thankappan, Divya S, Sheenu Thomas,V.P.N. Nampoori, The first national conference on trends and applications in laser technology and optoelectronics, TALTO 2013,Gurgaon, India, 4 April 2013.
  6. Study of regulation of anthocyanin production from confederate rose by spectroscopic method and their nonlinear optical characterization, Ani Augustine, Jose, Pranam Prakash, Aparna Thankappan, Sheenu Thomas, V.P.N.Nampoori, J.S.N., VOL. 4(2) 2013, pp.294-298.
  7. Microring lasing from a dye-doped polymer-coated silica fiber, Jaison Peter, C P G Vallabhan, P. Radhakrishnan, V P N Nampoori and M Kailasnath, Laser Physics 23 (2013).
  8. A study on tuning of the face orientation of ZnOnano/micro crystals by a wet chemical method,Aparna Thankappan, Sheenu Thomas, V.P.N. Nampoori chineses optics letters [in press].
  9. Dynamics of tightly focused femtosecond laser pulses in water, S Sreeja, CH Leela, V Rakesh Kumar, Suman Bagchi, T Shuvan Prashant, P Radhakrishnan, Surya P Tewari, S Venugopal Rao and P Prem Kiran Laser Physics 23, (2013).
  10. Laser emission from the whispering gallery modes of a graded index fiber, C.L. Linslal, S. Mathew, P. Radhakrishnan, V.P.N. Nampoori, C.P. Girijavallabhan, M. Kailasnath, Optics Letters 38(17) 2013.
  11. Concentration tuned bandgap and corresponding nonlinear refractive index dispersion in Ga-Ge-Se nanocolloids, Indu Sebastian, S. Mathew, V. P. N. Nampoori, P. Radhakrishnan, and Sheenu Thomas, Journal of Applied Physics 114, 053102 (2013).
  12. Impact of Intermediate localized states on nonlinear absorption of Ga-Ge-Se nanocolloidal solution, Indu Sebastian, S. Divya, V.P.N. Nampoori, P. Radhakrishnan, Sheenu Thomas, Applied Physics Letters 102, 031115, (2013).
  13. Studies of nonlinear optical properties of PicoGreen dye using Z-scan technique, C. Pradeep, S. Mathew, B. Nithyaja, P. Radhakrishnan and V. P. N. Nampoori, Applied Physics A, (2013), (In press).
  14. Effect of marine derived deoxyribonucleic acid on nonlinear optical properties of PicoGreendye,C. Pradeep, S. Mathew, B. Nithyaja, P. Radhakrishnan and V. P. N. Nampoori, Applied Physics B, 111(4), pp. 611-615, (2013).
  15. Two photon fluorescence spectra from MEH- PPV/Polystyrene based film waveguides, G. Sreelekha, G Vidya ,M S Ebin, K Geetha ,S Sreeja, Rani Joseph, S Pratapan,PRadhakrishnan, C P G Vallabhan and V P N Nampoori, Journal of Optics, 42(2), pp. 101-105, (2013).
  16. Measurement of thermal diffusivity of MEH–PPV in different organic solvents using laser induced thermal lens technique, G. Sreelekha, G. Vidya, P. Radhakrishnan, C.P.G. Vallabhan, V.P.N. Nampoori, Optik – International Journal for Light and Electron Optics, 124(17), pp. 3138-3141, (2013).
  17. Thermal diffusivity of nanofluids composed of rod-shaped silver nanoparticles, Misha Hari, Santhi Ani Joseph, S Mathew, B Nithyaja, V. P. N. Nampoori, P. Radhakrishnan, International Journal of Thermal Sciences, 64, pp. 188-194, (2013).
  18. Detection of adulteration in virgin olive oil using a fiber optic long period grating based sensor,T.M.Libish, M.C. Bobby, J. Linesh, S. Mathew, C. Pradeep, V.P.N. Nampoori, P. Biswas, S. Bandyopadhyay, K. Dasgupta and P. Radhakrishnan, Laser Physics, 23(4), pp. 045112-045116, (2013).
  19. A Biosensor for the Detection and Estimation of Cholesterol Levels based on Long Period Gratings, C. Bobby Mathews, T. M. Libish, J. Linesh, P. Biswas, S. Bandyopadhyay, K. Dasgupta, P. Radhakrishnan, Sensors & Transducers Journal, 149(2), pp. 83-88, (2013).
  20. Optical characterization of ZnOnanoplates embedded in polymeric matrices for optical limiting applications, Aparna Thankappan, Divya S, Sheenu Thomas, V. P. N. Nampoori, Optics & Laser Technology, 52, pp. 37-42, (2013).
  21. Erratum to Synthesis of monocrystalline zinc oxide microrods by wet chemical method for light confinement applications, Aparna Thankappan, Misha Hari, S. Mathew, Santhi Ani Joseph, Rolf Erni, Debajeet Bora, Artur Braun, V. P. N. Nampoori, Physica E: Low-dimensional Systems and Nanostructures, 47 [Note(s): p. 46], (2013).
  22. Impact of Intermediate localized states on nonlinear absorption of Ga-Ge-Se nanocolloidal solution,Indu Sebastian, S. Divya, V.P.N. Nampoori, P. Radhakrishnan and Sheenu Thomas Appl. Phys. Letter 102, 031115 (2013).
  23. Laser emission from the whispering gallery modes of a graded index fiber, Linslal C L, Mathew S, RadhakrishnanP, Nampoori V P N, Vallabhan C P G, Kailasnath M, Lett., 38(17), 326163, (2013).
  24. Investigation of optical limiting properties of aluminum nanoparticles prepared by pulsed laser ablation in different carrier media, Rajamudilli K, Jyothi L, Prakash P, Mayank SS, Durga MP, Narayanan Rao T, Appl. Phys., 114(24), 243101, (2013) .

  

Year 2012

  1. Effect of Cu and Fe on the electrical properties of Ni-Mn-Co-O NTC thermistor compositions, M. N. Muralidharan, P. R. Rohini, E. K. Sunny, K. R. Dayas and A. Seema, Ceramics International, 38(8), pp.6481-6486, (2012).
  2. UV-Visible Photoluminescence of TiO2 Nanoparticles Prepared by Hydrothermal Method, S. Mathew, Amit kumar Prasad, Thomas Benoy, P. P. Rakesh, Misha Hari, T. M Libish, P. Radhakrishnan, V. P. N. Nampoori, C. P. G. Vallabhan, Journal of Fluorescence, 22(6), pp. 1563-1569, (2012).
  3. Nonlinear optical characterization and measurement of optical limiting threshold of CdSe quantum dots prepared by a microemulsion technique, S. Mathew, Amit D. Saran, Santhi Ani Joseph, Bishwajeet Singh Bhardwaj, Deep Punj, P. Radhakrishnan, V. P. N. Nampoori, C. P. G. Vallabhan, Jayesh R. Bellare, Journal of Materials Science: Materials in Electronics, 23(3), pp. 739-745, (2012).
  4. Size dependent optical properties of the CdSe-CdS core-shell quantum dots in the strong confinement regime, S. Mathew, Amit D. Saran, Bishwajeet Singh Bhardwaj, Santhi Ani Joseph, P. Radhakrishnan, V. P. N. Nampoori, C. P. G. Vallabhan, and Jayesh R. Bellare, Journal of Applied Physics 111(7), 074312, (2012).
  5. Studies on CdS nanoparticles prepared in DNA and bovine serum albumin based biotemplates,B. Nithyaja, K. Vishnu, S. Mathew, P. Radhakrishnan, and V. P. N. Nampoori, Journal of Applied Physics, 112(6), 064704, 2012.
  6. Saturable and reverse saturable absorption in aqueous silver nanoparticles at off-resonant wavelength, Misha Hari, S. Mathew, B. Nithyaja, Santhi Ani Joseph, V.P.N. Nampoori, P. Radhakrishnan, Optical and Quantum Electronics, 43, pp. 49-58, (2012).
  7. Band-gap tuning and nonlinear optical characterization of Ag:TiO2 nanocomposites, Misha Hari, Santhi Ani Joseph, S. Mathew, P. Radhakrishnan, and V. P. N. Nampoori, Journal of Applied Physics 112(7), 074307, 2012.
  8. Synthesis of silver nanoparticles in DNA template and its influence on nonlinear optical properties, B. Nithyaja, H. Misha, and V.P.N. Nampoori, Nanoscience and Nanotechnology, 2(4), pp. 99-103, 2012.
  9. Evaluation of absolute fluorescence quantum yield of MEH-PPV using laser induced thermal lens technique, G.Sreelekha, G. Vidya, Rani Joseph ,S. Prathapan , P. Radhakrishnan, C.P.G. Vallabhan and V.P.N. Nampoori, Asian J. Spectrosc, pp. 271-275, Special Issue-2012.
  10. Refractive index and temperature dependent displacements of resonant peaks of long period grating inscribed in hydrogen loaded SMF-28 fiber, T. M. Libish, M. C. Bobby, J. Linesh, S. Mathew, C. Pradeep, V. P. N. Nampoori, P. Radhakrishnan, Optoelectronics Letters, 8(2), pp.101-104, (2012).
  11. Experimental analysis on the response of long period grating to refractive indices higher and lower than that of fiber cladding, T.M. Libish, M.C. Bobby, J. Linesh, V.P.N. Nampoori, P. Radhakrishnan, Microwave and Optical Technology Letters, 54(10), pp. 2356–2360, (2012).
  12. Nonlinear optical studies of DNA doped Rhodamine 6G PVA films using picosecond pulses, S. Sreeja, B. Nityaja, Debasis Swain, V.P.N. Nampoori, P. Radhakrishnan, S. Venugopal Rao, Optics and Photonics Journal, 2(3), 135-139, (2012).
  13. Effect of lens tilt on SCE and filamentation characteristics of fs pulses in air, S. Sreeja, T. Shuvan Prashant, P. Radhakrishnan, Surya P. Tewari, S. Venugopal Rao, P. Prem Kiran, SPIE Vol. 8434 (SPIE, Bellingham, WA) 84340T, (2012).
  14. Filamentation characteristics of focused fs pulses in atmosphere, S. Sreeja, V. Rakesh Kumar, Ch. Leela, P. Radhakrishnan, Surya P. Tewari, S. Venugopal Rao, P. Prem Kiran,SPIE Vol. 8434 (SPIE, Bellingham, WA), 84340U, (2012).
  15. Supercontinuum emission from water using fs pulses in the external tight focusing limit, S. Sreeja, S. Venugopal Rao, P. Radhakrishnan, Surya P. Tewari, P. Prem Kiran, SPIE, 8247, 824718, (2012).
  16. Synthesis of monocrystalline zinc oxide mircorods by wet chemical method for light confinement applications, Aparna Thankappan, Misha Hari, S. Mathew, Santhi Ani Joseph, Erni Rolf, Debajeet Bora, Artur Braun, V.P.N. Nampoori, Physica E: Low-dimensional Systems and Nanostructures, 44(10), pp. 2118–2123, (2012).
  17. Effect of betanin natural dyeextracted from red beetroot on the nonlinear optical properties of ZnO nanoplates embedded in polymeric matrices, Aparna Thankappan, Sheenu Thomas, V. P. N. Nampoori, Journal of Applied Physics 112, 123104, (2012).
  18. Interfacial edge dislocation interaction with free-surfaces in nanocrystals, A. Kumar, K.G. Kavitha and A.O. Subramanian, Journal of Nanoscience and Technology 12, 5096-5101, 2012.

  

Year 2011

  1. Photoinduced changes in optical properties of Ga–Sb–Ge–Se glasses, R.Tintu , V.P.N. Nampoori, P. Radhakrishnan, Sheenu Thomas,Optics Communications 284 (2011) 222–225.
  2. Structural and optical properties of ZnO micro rods synthesized by low temperature hydrothermal route, Aparna Thankappan, Misha Hari, S Mathew, Santhi Ani Joseph, V.P.N Nampoori, AIP Conf. Proc. of Optics: Phenomena, Materials ,Devices and Characterization, 1391, 514-516 (2011).
  3. Preparation and optical characterization of novel Ge–Se–Sb/PVA composite films for optical limiting application, R. Tintu, V.P.N. Nampoori, P. Radhakrishnan, Sheenu Thomas, Phys. D: Appl. Phys. 44 (2011) 025101.
  4. Effect of deoxyribonucleic acid on nonlinear optical properties of Rhodamine 6G- polyvinyl alcohol solu-tion, B. Nithyaja, H. Misha, P. Radhakrishnan, and V. P. N. Nampoori; Journal of Applied Physics 109, 023110 (2011).
  5. The Effect of Grating Period on Refractive Index Sensitivity of Long Period Gratings Written in Hydrogen Loaded SMF-28 Fiber, T. M. Libish, M. C. Bobby, J. Linesh, P. Biswas, S. Bandyopadhyay, K. Dasgupta, P. Radhakrishnan, Journal Of Optoelectronics and advanced Materials, Vol. 13, Issue 5, May 2011, pp. 491-496.
  6. Optical Non-linearity in ZnO Doped TeO2 Glasses, Rose Leena Thomas, Vasuja, Misha Hari, V. P.N. Nampoori, P. Radhakrishnan, Sheenu Thomas, Journal Of Optoelectronics and advanced Materials, Vol. 13, Issue 5, May 2011, pp. 523-527.
  7. Periodically Tapered LPFG for Ethanol Concentration Detection in Ethanol-Gasoline Blend, J. Linesh, T. M. Libish, M. C. Bobby, P. Radhakrishnan and V. P. N. Nampoori, Sensors & Transducers Journal, Vol. 125, Issue 2, February 2011, pp. 205-212.
  8. Shifting of Fluorescence Peak in CdS Nanoparticles by Excitation Wavelength Change, Mathew S, Ani Joseph S, Radhakrishnan P, Nampoori V P, Vallabhan C P, J Fluoresc. 2011 Jan 19.
  9. Fiber Bragg Grating Sensor for Detection of Nitrate Concentration in Water, A. S. Lalasangi, J. F. Akki, K.G. Manohar, T. Srinivas, P. Radhakrishnan, Sanjay Kher, N. S. Mehla and U. S. Raikar, Sensors & Transducers Journal, Vol. 125, Issue 2, February 2011, pp. 187-193.
  10. Nanocomposite thin films of Ga5Sb10Ge25Se60 chalcogenide glass for optical limiting applications, R. Tintu, V.P.N. Nampoori, P. Radhakrishnan, Sheenu Thomas, Optical Materials 33 (2011) pp.1221–1225.
  11. Detection and Analysis of Paraffin oil Adulteration in Coconut oil Using Fiber Optic Long Period Grating Sensor, T.M. Libish, J. Linesh, M.C.Bobby, P.Biswas, S. Bandyopadhyay, K.Dasgupta, P.Radhakrishnan, Optik-International Journal for Light and Electron Optics, Vol. 122, No. 21, 1939–1942, (2011).

 

Year 2010

  1. Spectral and Nonlinear optical Characteristics of ZnO Nanocomposites, Littyirimpan, V. P.N. Nampoori and P. Radhakrishnan,Science Of Advaced Materials,Vol.2, 117-137,2010.
  2. Metglas thin film based magnetostrictive transducers for use in long period fibre grating sensors,Senoy Thomas, Jinesh Mathew, P. Radhakrishnan, V.P.N. Nampoori, A.K. George, S.H. Al-Harthi, R.V. Ramanujan, M.R. Anantharaman, Sensors and Actuators A: Physical, Volume 161, Issues 1–2, June 2010, Pages 83-90.
  3. Fiber Optic Long Period Grating Based Sensor for Coconut Oil Adulteration Detection,T.M.Libish , J.Linesh, P. Biswas, S. Bandyopadhyay, K. Dasgupta and P. Radhakrishnan, Sensors & Transducers Journal, Vol. 114, Issue 3, March 2010, pp. 102-111.
  4. Liquid level sensor using etched silica fiber, J. Linesh, K. Sudeesh, P. Radhakrishnan,and V. P. N. Nampoori, Microwave Opt. Technol. Lett., 52, 883,2010.
  5. Thermal diffusivity of rhodamine 6G incorporated in silver nanofluid measured using mode-matched thermal lens technique, Santhi Ani Joseph, Misha Hari, S. Mathew, Gaurav Sharma, Soumya, V.M. Hadiya, P. Radhakrishnan, V.P.N. Nampoori, Comms; 283(2010) 313?317.
  6. Laser induced Bessel beams can realize fast all-optical switcvh in gold nanosol prepared by pulsed laser ablation, Santhi Ani Joseph, Gauray Sharma, Misha Hari, S. Mathew,, P. Radhakrishnan, V.P.N.Nampoori, Opt. Soc. Am. B 27, 577-581 (2010).
  7. Photothermal characterization of nanogold under conditions of resonance excitation and energy transfer, Santhi Ani Joseph, S. Mathew, Gaurav Sharma, Misha Hari, P. Radhakrishnan, V.P.N. Nampoori, Plasmonics, Vol. 5 No.1, 63-68, 2010.
  8. Nonlinear optical studies on nanocolloidal Ga–Sb–Ge–Se chalcogenide Glass, R.Tintu, V. P. N. Nampoori, P. Radhakrishnan, and Sheenu Thomas; Journal of Applied Physics 108, 073525 (2010).
  9. Ge28Se60Sb12/PVA composite films for photonic applications, R Tintu, K Sulakshna, K Saurav, V P N Nampoori, P Radhakrishnan and Sheenu Thomas; Journal of Non-Oxide Glasses 2, No. 4, 167- 174, (2010).
  10. Students Chapter in Universities: Their Role in the School Level Technology Enabled Science Education., Praveen Cheriyan Ashok, V.P.N Nampoori; Educational Quest, Vol. 1.1, 27-32, (2010).
  11. Eye Confirmation‖ Sony George, Jon Y. Hardeberg, Tomson G. George, V.P.N. Nampoori; Journal of Imaging Science and technology, Vol. 54, No.3 (2010).
  12. A microring multimode laser using hollow polymer opticalfibre‖. M kailasnath, VPN. Nampoori, P.Radhakrishnan, Pramana; Journal of Physics, Vol.75,No.5, 923-927, (2010).
  13. Automatic Redeye correction Algorithm withMultilevel Students Chapter in Universities: Their Role in the School Level Technology Enabled Science Education.‖ Praveen Cheriyan Ashok, V.P.N Nampoori; Educational Quest, Vol. No. 1.1, 33- 37, (2010).

  

Year 2009

  1. Fast imaging of laser blow off plume: lateral confinement in ambient environment, Sony George, Ajai Kumar, R.K.Singh, V.P.N.Nampoori, Applied Physics Letters, 94, 141501 (2009).
  2. Effect of ambient gas on the expansion dynamics of plasma plume formed by laser blow off of thin film, Sony George, Ajai Kumar, R.K.Singh, V.P.N.Nampoori, Applied Physics A, 1432-0630 (2009).
  3. Thermal characterization of methylene blue intercalatedmontmorillonites by photoacoustic technique, Lyjo K. Joseph, H. Suja, G. Sanjay, S. Sugunan, V.P.N. Nampoori , P. Radhakrishnana,Applied Clay Science 42 (2009) 483?487.
  4. Thermal characterisation of dye-intercalated K-10 montmorillonite ceramics using photoacoustic technique, L. K. Joseph ; G. Sanjay ; H. Suja ; S. Sugunan ; V. P. N. Nampoori ; P. Radhakrishnan, Philosophical Magazine Vol. 89, No. 10, 1 April 2009, 895?905.
  5. Kinetics of bacterial colony growth by laser induced fluorescence, B. Nithyaja, V. K. Jisha,R. Tintu, A.V. Saramma and V. P. N. Nampoori, Laser Physics, 2009, Vol. 19, No. 3, pp.468-472.
  6. Selective mode excitation in the dye ?doped DNA polyvinyl alcohol thin film, Nithyaja Balan, Misha Hari, Vadakkedathu Parameswaran Narayana Namppori, Appl. Opt. 48 3521-3525(2009).
  7. Hopf bifurcation in parallel polarized Nd:YAG laser, M.R. Parvathi, Bindu M. Krishna, S. Rajesh, M.P. John and V.M. Nandakumaran, Chaos, Solitons & Fractals Vol.42, Issue 1, 2009, pp. 515-521
  8. Effect of a fluctuating parameter mismatch and the associated time-scales on coupled Rossler oscillators, Manu P. John , P. U. Jijo and V. M. Nandakumaran, Pramana, Vol.72, No.3, 2009, pp.495-503.
  9. Identification of spectral lines of elements using artificial neural networks, , M. Saritha, and V.P.N. Nampoori, Microchemical Journal, Vol.91, Issue 2, 2009, pp. 170-175.

  

Year 2008

  1. Visible luminescence mechanism in nano ZnO under weak confinement regime, Litty Irimpan, V P N Nampoori and P Radhakrishnan, Journal of Applied Physics, Volume 104, December 2008, Page 113112.
  2. Enhanced luminescence and nonlinear optical properties of nanocomposites of ZnO-Cu, Litty Irimpan, V P N Nampoori and P Radhakrishnan, Journal of Materials Research, Volume 23, Issue 11, Novemeber 2008, pp 2836-2845.
  3. Nonlinear optical characteristics of nanocomposites of ZnO-TiO2-SiO2, Litty Irimpan, Bindu Krishnan, V P N Nampoori and P Radhakrishnan, Optical Materials, Volume 31, Issue 2, October-December 2008, Pages 361-365.
  4. Kinetic studies of chemical reaction using laser induced thermal lens technique, Achamma Kurian, C V Bindhu and V P N Nampoori, Journal of Optics, 2008, Vol. 37, No. 2, Page 43-50.
  5. Fluorescence characterization and gain studies on a dye-doped graded index polymer optical-fiber preform, M Kailasnath, T S Sreejaya, Rajesh Kumar, C P G Vallabhan, V P N  Nampoori and P Radhakrishnan, Optics & Laser Technology, Volume 40, Issue 5, July 2008, Pages 687-691.
  6. Excitatiopn wavelength dependence of energy transfer in dye mixture doped polymer optical fibre preforms, M.Kailasnath, Nishant Kumar, V.P.N.Nampoori,C.P.G. Vallabhan, P.RadhakrishnanJournal of photochemistry and Photobiology A: Chemistry 199(2008) 236-241.
  7. Synchronization and control of chaos in coupled chaoitic multimode Nd:YAG lasers, M.R. Parvathi , Bindu M. Krishna, S. Rajesh, M.P. John and V.M. Nandakumaran, Physics Letters A   Volume 373, Issue 1, 22 December 2008, Pages 96-101.
  8. Thermal characterization of methylene blue intercalated montmorillonites by photoacoustic technique, Lyjo K Joseph, H Suja, G Sanjay, S Sugunan, V P N Nampoori and P Radhakrishnan, doi:10.1016/j.clay.2008.06.006.
  9. Comparative Performance of Two Fiber Optic Ammonia Sensors Employing Different Sensing Materials, Jinesh Mathew, V. V. Mahesh and P. Radhakrishnan, Sensors & Transducers Journal, Vol. 95, Issue 8, August 2008, pp. 65-71.
  10. Linear and nonlinear optical characteristics of ZnO-SiO2 nanocomposites, Litty Irimpan, Bindu Krishnan, V P N Nampoori and P Radhakrishnan, Applied Optics, Volume 47, Issue 24, August 2008, pp 4345-4351.
  11. Effect of annealing on the spectral and nonlinear optical characteristics of thin films of nano ZnO, Litty Irimpan, D Ambika, V Kumar, V P N Nampoori and P Radhakrishnan, Journal of Applied Physics, Volume 104, Issue 3, August 2008, pp 033118.
  12. Luminescence tuning and enhanced nonlinear optical properties of nanocomposites of ZnO-TiO2, Litty Irimpan, Bindu Krishnan, V P N Nampoori and P Radhakrishnan, Journal of Colloid and interface Science, Volume 324, Issues 1-2, August 2008, pp 99-104.
  13. Backscattering of laser light from colloidal silica, Litty Irimpan, V J Dann, Bindu Krishnan, A Deepthy, V P N Nampoori and P Radhakrishnan, Laser Physics, Volume 18, Issue 7, July 2008, pp 882-885.
  14. Synthesis and nonlinear optical studies of nano ZnO colloids, Bindu Krishnan, Litty Irimpan, V. P. N. Nampoori and V. Kumar, Physica E, Volume 40, Issue 8, June 2008, pp 2787-2790.
  15. Side illumination fluorescence emission characteristics from a dye doped polymer optical fiber under two photon excitation, M Sheeba, M Rajesh, S Mathew, VPN Nampoori, CPG Vallabhan and P Radhakrishnan, Appl. Opt, 2008 – OSA.
  16. Photoluminescence studies on rare earth titanates prepared by self propagating high temperature synthesis method, Lyjo K Joseph, K R Dayas, Bindu Krishnan, Soniya Damodar, K Krishnankutty, V P N Nampoori and P Radhakrishnan, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, DOI information: 10.1016/j.saa.2008.03.030.
  17. Raman spectra of polymethyl methacrylate optical fibers excited by a 532 nm diode pumped solid state laser, K J Thomas, M Sheeba, VPN Nampoori, CPG Vallabhan and P Radhakrishnan, Journal of Optics A: Pure and Applied Optics, Vol 10, 2008 pp 055303.
  18. Fabrication and characterization of dye mixture doped polymer optical fiber as a broad wavelength optical amplifier, M. Sheeba, M. Rajesh, V. P. N. Nampoori, and P. Radhakrishnan, Applied Optics, Vol. 47, Issue 11, 2008, pp. 1907-1912.
  19. Nonlinear optical characteristics of self-assembled films of ZnO, Litty Irimpan, A. Deepthy, Bindu Krishnan, V.P.N. Nampoori and P. Radhakrishnan, Applied Physics B: Lasers and Optics Volume 90, Numbers 3-4 / March, 2008 pp547-556.
  20. Spectral and nonlinear optical characteristics of nanocomposites of ZnO–CdS, Litty Irimpan, V.P.N. Nampoori and P. Radhakrishnan, J. Appl. Phys. 103, 094914 (2008); DOI:10.1063/1.2919109.
  21. Spectral and nonlinear optical characteristics of nanocomposites of ZnO–Ag, Litty Irimpan, V.P.N. Nampoori and P. Radhakrishnan, Chemical Physics Letters Vol 445, 10 april 2008, pp 265-269.
  22. Effect of self-assembly on the nonlinear optical characteristics of ZnO thin films, Litty Irimpan, A. Deepthy, Bindu Krishnan, L.M. Kukreja, V.P.N. Nampoori and P. Radhakrishnan, Optics Communications Vol 281, 15 May 2008, pages 2938- 2943.
  23. An Optoelectronic Sensor Configuration for the Determination of Age Related Indices Using Blood Volume Pulse, Jayasree V.K, Shaija P.J, Manu P. John, P. Radhakrishnan, Sensors & Transducers, vol.87, Jan.2008, pp 39-45.
  24. Size dependent enhancement of nonlinear optical properties in nano colloids of ZnO, Litty Irimpan, Bindu Krishnan, A. Deepthy, V.P.N Nampoori and P. Radhakrishnan, Journal of applied physics, 103, 033105 (2008).

  

Year 2007

  1. Study of solvent effect in laser emission from Coumarin 540 dye solution, Ritty J. Nedumpara, Thomas K. J., Jayasree V. K., C.P. Girijavallabhan, V.P.N. Nampoori, P. Radhakrishnan, Applied Optics 2007.
  2. Multimode laser emission from dye doped polymer optical fiber, M. Sheeba, K.J. Thomas, M. Rajesh, V.P.N. Nampoori, C.P.G. Vallabhan, P.Radhakrishnan, Applied Optics, Vol 46, 8089- 8094, 2007.
  3. Thermal lens technique to study the effect of pH on electronic energy transfer in organic dye mixtures, Achamma Kurian, Sajan D. George, C.V. Bindhu, V.P.N. Nampoori and C.P.G. Vallabhan, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 67, Issues 3-4, July 2007, Pages 678-682.
  4. Fabrication and Characterization of Monolithically Fused Wavelength-Independent 1X4 Couplers, Samuel Varghese, Muhammed Iqbal, Suresh Nair, V.P.N. Nampoori and C.P.G. Vallabhan, Fiber and Integrated Optics 26, 245-254 (2007).
  5. A Comparative Study of Fiber Optic Humidity Sensors Based on Chitosan and Agarose, Jinesh Mathew, K. J. Thomas, V. P. N. Nampoori and P. Radhakrishnan, Sensors & Transducers Journal, Vol.84, Issue 10, October 2007, pp. 1633-1640.
  6. A comparative study of energy transfer in dye mixtures in monomer and polymer matrices under pulsed laser excitation, M Kailasnath, P R John, P Radhakrishnan V P N Nampoori and C P G Vallabhan, Journal of Photochemistry and Photobiology A:Chemistry, (2007).
  7. Photoacoustic studies on thermal parameters of liquid crystal mixtures, Sajan D George, A K George, P Radhakrishnan, V P N Nampoori and C P G Vallabhan, Smart Mater Struct. 16, 1298-1301 (2007).
  8. Photoacoustic Thermal Characterisation of Porous Rare-Earth Phosphate Ceramics, Sajan D George, Rajesh Komban, K G K Warrier, P Radhakrishnan, V P N Nampoori and C P G Vallabhan, International Journal of Thermophysics, Vol. 28, No. 1 (2007).
  9. Size dependent fluorescence spectroscopy of nanocolloids of ZnO, Litty Irimpan, A Deepthy, Bindu Krishnan, V P N Nampoori and P Radhakrishnan, J.Appl. Phys. 102, 063524 (2007).
  10. Excitation wavelength dependent fluorescence behaviour of nano colloids of ZnO, Litty Irimpan, Bindu Krishnan, A Deepthy, V P N Nampoori and P Radhakrishnan, J. Phys. D: Appl. Phys. 40(18) 5670-5674(2007).
  11. Spectoscopic Characterisation of Laser Induced Plasma from Titanium Dioxide. V J Dann, Manoj V Mathew, V P N Nampoori, C P G Vallabhan, V M Nandakumaran, P Radhakrishnan, Plasma Science and Technology, Vol 9, No 4, August 2007.
  12. Fabrication and characterization of dye doped optical fiber as a light amplifier, Mandanparambil Rajesh, Mavila Sheeba, Karinjamanna Geetha, Chakkalakkal P. G. Vallabhan, Padmanabhan Radhakrishnan, and Vadakkedathu P. N. Nampoori, Applied Optics, Vol. 46, No.1, 1 January 2007.
  13. Thermal characterization of ceramic tapes using photo acoustic effect, Annieta Philip K, Lyjo K. Joseph, Litty M. Irimpan, Bindu Krishnan, P. Radhakrishnan, V. P. N. Nampoori, Raghu Natarajan, physica status solidi (a), (2007).
  14. Laser induced fluorescence based optical fiber probe for analyzing bacteria, P. M. Sandeep, S W B Rajeev, M Sheeba, S G Bhat and V P N Nampoori, Laser Physics Letters, 1-5 (2007).
  15. Light amplification in dye doped polymer films, Ritty J.Nedumpara, Geetha K, Dann V. J, V P N Nampoori, P.G.Vallabhan and P Radhakrishnan, J. of Opt.A:Pure and Appl.Opt.9 (2007) 7-14.

  

Year 2006

  1. Spectral dependence of third order nonlinear optical susceptibility of zinc phthalocyanine, A Santhi, Vinu V Namboodiri, P Radhakrishnan and V P N Nampoori, Journal of Applied Physics, 100, 053109 (2006).
  2. Simultaneous determination of nonlinear optical and thermo-optic parameters of liquid samples, A Santhi, V N Vinu, P Radhakrishnan and V P N Nampoori, Applied Physics Letters, 89, 1 (2006).
  3. Laser emission from transversely pumped dye-doped free standing polymer film, K Geetha, M Rajesh, V P N Nampoori, C P G Vallabhan and P Radhakrishnan, Journal of optics A: Pure and Applied optics, 8, (2006) 189-193.
  4. Propagation characteristics and wavelength tuning of amplified spontaneous emission from dye-doped polymer, K Geetha, M Rajesh, V P N Nampoori, C P G Vallabhan and P Radhakrishnan, Applied Optics, Vol.45, No.4, 1 Feb 2006.
  5. Control of bistability in a directly modulated semiconductor laser using delayed optoelectronic feedback, S Rajesh, V M Nandakumaran, Elsevier Physica D 213 (2006) 113-120.
  6. A fiber optic smart sensor for studying the setting characteristics of various grades of cement, M Rajesh, K Geetha, M Sheeba, P Radhakrishnan, C P G Vallabhan and V P N Nampoori, Optics and Lasers in Engineering, Volume 44, Issue 5, May 2006, Pages 486-493.
  7. Characterization of Rhodamine 6G doped polymer optical fiber by side illumination fluorescence, M Rajesh, K Geetha, M Sheeba, C P G Vallabhan, P Radhakrishnan and V P N Nampoori, Optical Engineering, 45(7) 075003, July 2006.
  8. Design and fabrication of dye-doped polymer optical fiber for optical amplification, M Rajesh, M Sheeba, K Geetha, C P G Vallabhan, P Radhakrishnan and V P N Nampoori, SPIE Proceedings: Symposium on Optics & Photonics, August 2006, San Diego, California USA.
  9. Backscattering from nano-sized ZnO suspensions, Bindu Krishnan, A. Deepthy Litty Irimpan, Dann.V.J, V.P.N Nampoori, Physica E 35 (2006) 23-26.

  

Year 2005

  1. Dual beam thermal lens and z scan studies of the thermo optical Properties of some non linear materials, A. Santhi, Vinu V N, M R P Kurup, J Kesavayya, P Radhakrishnan and V P N Nampoori, Proceedings of SPIE, Vol. 5710 , (2005), 91-98.
  2. Line narrowing effects and enhanced back scattering from ZnO colloids, Bindu Krishnan and V P N Nampoori, J. Material Science, (in press).
  3. Optothermal depth profiling by neural network infrared radiometry Signal recognition, Jyotsna Ravi, Yuekai Lu, and Stéphane Longuemart, Stefano Paoloni, Helge Pfeiffer, Jan Tho and Christ Glorieuxa, Journal of Applied Physics 97, 014701 (2005).
  4. Photoacoustic study on the photostability of polymethyl methacrylate films doped with Rodhamine 6G – Rhodamine B dye mixture system, Annieta Philip, Lyjo K Joseph, Litty Mathew Irimpan, P Radhakrishnan and V P N Nampoori ,Journal of physics: D Applied Physics, 38, (2005), 2904.
  5. Spectroscopic characterization of laser induced tin plasma, S S Harilal, Beau O’ shey, Mark. S. Tillack and Manoj V Mathew, Journal of applied physics, 98, 013306, (2005).
  6. Study on the determination of molecular distance in organic dye mixtures using dual beam thermal lens, Achamma Kurian, Sajan D George, V P N Nampoori, C P G Vallabhan, Spectrochimica Acta part A, 61, (2005), 2799.
  7. Screen printed nanosized ZnO thick film, Bindu Krishnan and V.P.N Nampoori, Bulletin of Material Science, (in press).

  

Year 2004

  1. Complexity Quantification of Dense Array EEG using Sample Entropy Analysis, Pravitha Ramanand V P N Nampoori and R Sreenivasan, Journal of Integrative Neuroscience, 3(3), (2004) 343-358.
  2. Effect of silver nano particles on the fluorescence quantum yield of Rhodamine 6G determined using dual beam thermal lens method, A Santhi, M Umadevi, V Ramakrishnan, P Radhakrishnan and V P N Nampoori, Spectrochimica Acta Part A: Molecular and Bimolecular Spectroscopy, 60 (5), (2004), 1077-1083.
  3. Loss characterization in Rhodamine 6G doped polymer film waveguide by side illumination fluorescence, K Geetha, M Rajesh, V P N Nampoori, C P G Vallabhan and P Radhakrishnan, J. Opt. A: Pure Appl. Opt. 6, (2004),379–383.
  4. Photoacoustic Investigation on the photostability of Coumarin 540-doped PMMA, Ritty J Nedumpara, Binoy Paul, Santhi A, P Radhakrishnan, V P N Nampoori, Spectrochimica Acta Part A-60, (2004) ,435-439.
  5. Nanosecond optical limiting response of sandwich-type neodymium dyphthalocyanine in a co-polymer host, B Aneeshkumar, Pramod Gopinath, Jayan Thomas, C P G Vallabhan, V P N Nampoori and P Radhakrishnan, Synthetic Metals, 143, (2004), 197.
  6. Photoacoustic investigations on intrinsic and extrinsic InP, Sajan D George, B Aneeshkumar, P Radhakrishnan, V P N Nampoori and C P G Vallabhan, Optical Engineering, 43 (12), (2004), 3114.
  7. Photoacoustic investigations on intrinsic and extrinsic Si, Sajan D George, B Aneeshkumar, P Radhakrishnan, V P N Nampoori and C P G Vallabhan, Optical Engineering (2004), (in press).
  8. Photoacoustic spectrum of samarium phthalocyanine powder, Nibu A George, R Jyotsna, S Thomas Lee, B Aneeshkumar, J Thomas, V P N Nampoori and P Radhakrishnan, Optical Materials (in press).
  9. Thermal lens technique to evaluate the fluorescence quantum yield of Schiff base, A Santhi, U L Kala, R J Nedumpara, A Kurian, M R P Kurup, P Radhakrishnan and V P N Nampoori, Applied Physics B, (2004) 1-5.

  

Year 2003

  1. Photothermal deflection measurement on heat transport in GaAs epitaxial layers. Sajan D George, P Radhakrishnan, V P N Nampoori and C P G Vallabhan , Physical Review B (2003), 68 (16), 165319.
  2. Photothermal deflection studies on heat transport in intrinsic and extrinisic InP. Sajan D George, P Radhakrishnan, V P N Nampoori and C P G Vallabhan Applied Physics B: Lasers and Optics (2003), 77, 633-637.
  3. Effect of Te doping on the thermal diffusivity of Bi2Se3 crystals – A study using open cell photoacoustic technique. Sajan D George, Saji Augustine, Elizabeth Mathai, P Radhakrishnan, V P N Nampoori and C P G Vallabhan,  Physica Status Solidi (a), (2003), 196(2), 384-389.
  4. A photoacoustic study of the effect of doping concentration in the transport properties of GaAs epitaxial layers. Sajan D George, Dilna S, Prasanth R, P Radhakrishnan, C P G Vallabhan and V P N Nampoori, Optical Engineering, (2003) 42 (5), 1476-1480.
  5. Thermal characterisation of intrinsic and extrinsic InP. Sajan D George, P Radhakrishnan, V P N Nampoori and C P G Vallabhan, Journal of Physics D: Applied Physics, (2003), 36 (8), 990-993.
  6. Photoacoustic measurement of transport properties in doped GaAs epitaxial layers. Sajan D George, Dilna S, P Radhakrishnan, C P G Vallabhan and V P N Nampoori, Physica Status Solidi (A), (2003), 195 No-2, 416-421.
  7. Trace Detection of Nitrites in water using Long Periodic Grating in Multimode Optical Fibers. P Suresh Kumar, R Dinesh Kumar, Thomas Lee S, V P N Nampoori and P Radhakrishnan, Optics Communications (In Press)
  8. Long Period Gratings in Multimode Fibers: Application in Chemical Sensing. S Thomas Lee, P Suresh Kumar, R Dinesh Kumar, V P N Nampoori, C P G Vallabhan and P Radhakrishnan, Optics Communications (In Press)
  9. Evanescent wave fibre optic sensors for trace analysis of Fe3+ in water. Thomas Lee, P. Suresh Kumar, K. P. Unnikrishnan, V. P. N. Nampoori, C. P. G. Vallabhan, S. Sugunan and P. Radhakrishnan, Measurement Science and Technology (2003), 14, 858-861.
  10. Effect of silver nano particles on the fluorescence quantum yield of Rhodamine 6G determined using Dual beam thermal lens method. Santhi A, M. Umadevi, V. Ramakrishnan, P. Radhakrishnan and V. P. N. Nampoori, Spectrochimica Acta part B (In Press).
  11. Optical-limiting response of rare-earth metallo-phthalocyanine doped copolymer matrix. Aneeshkumar, Pramod Gopinath, Jayan Thomas, C. P. G. Vallabhan, V. P. N. Nampoori, and P. Radhakrishnan, Journal of Optical Society of America B (2003), 20, 1486-1490.
  12. Thermal lens spectrum of organic dyes using optical parametric oscillator Achamma kurian, K. P. Unnikrishnan, D. Sajan George, Pramod Gopinath, V.P.N. Nampoori and C. P. G. Vallabhan, Spectrochimica Acta part A (2003), 59, 487-491.

  

Year 2002

  1. Studies on two photon absorption of aniline using thermal lens effect. Achamma Kurian, K P Unnikrishnan, Thomas Lee Sajan D George,V P N Nampoori and C P G Vallabhan, Journal of Nonlinear Optical Physics & Materials (In Press).
  2. Studies on fluorescence efficiency and photodegeneration of rhodamine 6G doped PMMA using thermal lens technique. Achamma Kurian, Nibu A George, Binoy Paul, V P N Nampoori and C P G Vallabhan, Laser Chemistry (2002), 20 (2-4), 99-110.
  3. Realization of optical logic gates using thermal lens technique. Achamma Kurian, Nibu A George, S. Thomas Lee, K P Unnikrishnan, V P N Nampoori and C P G Vallabhan, Laser Chemistry (2002), 20 (2-4), 81-87.
  4. Design and development of an LED based fiber optic evanescent wave sensor for simultaneous detection of chromium and nitrite traces in water. P. Suresh Kumar, S. Thomas Lee, C.P.G.Vallabhan, V.P.N. Nampoori and P. Radhakrishnan, Optics Communications (2002), 214 (1-6), 25-30.
  5. Compact polrization-independent Match-Zender space switch combining carrier depletion and the quantum confined stark effect. R.Prasanth, J.E.M.Haverkort, J.H.Wolter, IEEE Journel of Quantum Electronics ( In Press).
  6. Optical properties of porphyrins in borate glassy matrix. Kumar, G. A.; Thomas, Vinoy; Jose, Gin; Unnikrishnan, N. V.; Nampoori, V. P. N., Materials Chemistry and Physics (2002), 73(2-3), 206-211.
  7. Effect of pH on quantum yield of fluorescein using thermal lens technique. Achamma Kurian, Nibu A George, Sajan D George, K P Unnikrishnan, Binoy Paul, Pramod Gopinath, V P N Nampoori and C P G Vallabhan, Journal of Optics, (2002), 31(1), 29-36.
  8. Optical emission diagnostics of laser produced carbon plasma. Harilal, S. S., Advances in Laser and Optics Research, (2002), 1, 187-230, (Chapter in the book by Nova Publishers).
  9. Photoacoustic Investigation of doped InP using open cell configuration. D. George. C.P.G.Vallabhan, M.Heck, P.Radhakrishnan and V.P.N.Nampoori, Nondestructive Evaluation and Testing,(2002), 18, 75-82.
  10. Photothermal deflection studies on GaAs epitaxial layers. George N A, Vallabhan C P G, Nampoori V P N and Radhakrishnan P, Applied Optics, (2002), 41(24), 5179-5184.
  11. Degenerate four wave mixing in some metal phthalocyanines and naphthalocyanines. K. P. Unnikrishnan, Jayan Thomas, V. P. N. Nampoori and C. P. G. Vallabhan, Chem. Phys., 279, 2002, 209-213.
  12. A Fiber optic evanescent wave sensor used for the detection of trace nitrites in water. P Sureshkumar, C P G Vallabhan, V P N Nampoori, V N Sivasankara Pillai and P Radhakrishnan, Journal of Optics A.
  13. Microbent Optical Fibers as Evanescent Wave Sensors. S Thomas Lee, K. Geetha, V P N Nampoori, C P G Vallabhan and P Radhakrishnan Optical Engg., (In Press)
  14. A microbent fiber optic pH sensor. Thomas Lee, B. Aneeshkumar, P. Radhakrishnan, C. P. G. Vallabhan and V. P. N. Nampoori, Optics Communications.
  15. Chaotic encryption using long wavelength directly modulated semiconductor lasers. Bindu, V M Nandakumaran., J. Optics A- Pure & Appl. Optics.
  16. NIR to UV absorption spectra and the optical constants of phthalocyanines in glassy medium. A. Kumar, Gin Jose, Vinoy Thomas, N. V. Unnikrishnan and V. P. N. Nampoori, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, (In Press)
  17. Third order nonlinear optical studies in europium naphthalocyanine using degenerate four wave mixing and Z-scan. P. Unnikrishnan, Jayan Thomas, V. P. N. Nampoori and C. P. G. Vallabhan, Optics Communications, 204, (2002), 385-390.
  18. Photoacoustic studies on n-type InP. Nibu A. George, C. P. G. Vallabhan, V. P. N. Nampoori, and P. Radhakrishnan, Optical Engineering, (2002) ,41(1), 251-254.
  19. Optical properties of porphyrins in borate glassy matrix. Kumar, G. A.; Thomas, Vinoy; Jose, Gin; Unnikrishnan, N. V.; Nampoori, V. P. N., Materials Chemistry and Physics (2002), 73(2-3), 206-211.
  20. Dynamical aspects of coupled Rossler systems: effects of noise. Pravitha, R.; Indic, P.; Nampoori, V. P. N. Physics Letters A (2002), 294(1), 37-46.

  

Year 2001

  1. Laser induced photoacoustic technique for the detection of phase transitions in liquid crystals. George, Nibu A.; Vallabhan, C. P. G.; Nampoori, V. P. N.; George, A. K.; Radhakrishnan P.,Non-destructive Testing and Evaluation (2001), 17(6), 315-324. 
  2. Study of energy transfer in organic dye pairs using thermal lens technique. Achamma Kurian, K P Unnikrishnan, Pramod Gopinath, V P N Nampoori and C P G Vallabhan, Journal of Nonlinear Optical Physics & Materials, Vol. 10, No. 4(2001) 415-421.
  3. Effect of time scales on the unfolding of neural attractors. Pravitha, R; Indic, P; Nampoori, V P; Pratap, R, The International Journal of Neuroscience, Volume 111, Issue 3-4, (2001),175-186.  
  4. Chemical sensing with microbent optical fiber. Thomas, Lee S.; George, Nibu Sureshkumar, P.; Radhakrishnan, P.; Vallabhan, C. P. G.; Nampoori, V. P. N.  Lett.  (2001), 26(20), 1541-1543.
  5. A sensitive fibre optic pH sensor using multiple sol-gel coatings. Lee, S. Thomas; Gin, Jose; Nampoori, V. P. N.; Vallabhan, C. P. G.; Unnikrishnan, N. V.; Radhakrishnan, P., J. Opt. A: Pure Appl. Opt.  (2001), 3(5), 355-359.
  6. Use of an open photoacoustic cell for the thermal characterisation of liquid crystals. George, N. A.; Vallabhan, C. P. G.; Nampoori, V. P. N.; George, A. K.; Radhakrishnan, P., Appl. Phys. B: Lasers Opt.  (2001), 73(2), 145-149.
  7. Open-cell photoacoustic investigation of the thermal effusivity of liquid crystals. George, Nibu A.; Vallabhan, C. P. G.; Nampoori, V. P. N.; George, A. K.; Radhakrishnan, P., Opt. Eng.   (2001), 40(7), 1343-1347.
  8. Low-crosstalk penalty MZI space switch with a 0.64-mm phase shifter using quantum-well electrorefraction. Dorren, B.H.P.; Haverkort, J.E.M.; Prasanth, R.; Groen, F.H.; Wolter, J.H. , IEEE Photonics Technology Letters (2001)  Volume: 13, Issue: 1 , 37 -39.
  9. Nonlinear absorption and optical limiting in solutions of some rare earth substituted phthalocyanines. Unnikrishnan, K. P.; Thomas, Jayan; Paul, Binoy; Kurian, Achamma; Gopinath, Pramod; Nampoori, V. P. N.; Vallabhan, C. P. G., J. Nonlinear Opt. Phys. Mater.  (2001), 10(1), 113-121.
  10. Optical absorption and emission spectral studies of phthalocyanine molecules in DMF. Kumar, G. A.; Thomas, J.; Unnikrishnan, N. V.; Nampoori, V. P. N.; Vallabhan, C. P. G., J. Porphyrins Phthalocyanines (2001), 5(5), 56-459.
  11. Optical properties of phthalocyanine molecules in cyano acrylate polymer matrix. Kumar, G. A.; Thomas, J.; Unnikrishnan, N. V.; Nampoori, V. P. N.; Vallabhan, C. P. G., Mater. Res. Bull.  (2001), 36(1-2), 1-8.
  12. Effect of the excitation source on the quantum-yield measurements of Rhodamine B laser dye studied using thermal-lens technique. Bindhu, C. V.; Harilal, S. S., Anal. Sci.  (2001), 17(1),141-144.
  13. Photoacoustic evaluation of the thermal effusivity in the isotropic phase of certain comb-shaped polymers. George, Nibu A.; Vallabhan, C. P. G.;Nampoori, V. P. N.; George, A. K.; Radhakrishnan, P., J. Phys.: Condens. Matter (2001), 13(3), 365-371.
  14. Expansion dynamics of laser ablated carbon plasma plume in helium ambient. Harilal, S. S., Appl. Surf. Sci.  (2001), 172(1-2), 103-109.
  15. Effect of excitation source on the quantum yield measurements of rhodamine B using thermal lens technique. Bindhu CV and Harilal SS, Analytical Sciences (2001), 17, 141-44.

  

Year 2000

  1. Use of photoacoustic effect for the detection of phase transitions in liquid crystal mixtures. Nibu A.; Vallabhan, C. P. G.; Nampoori, V. P. N.; George, A. K.; Radhakrishnan, P., J. Phys. D: Appl. Phys. (2000), 33(24),3228.                
  2. Numerical studies on bi-directionally coupled directly modulated semiconductor lasers. Bindu, V.; Nandakumaran, V. M. , Phys. Lett. A (2000), 277(6), 345-351. 
  3. Emission spectral studies of phthalocyanines in borate glass matrix. Kumar, G. A.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Jose, G.; Unnikrishnan, N. V., J. Mater. Sci. Lett.  (2000), 19(18),1669-1672.
  4. Spectral studies of naphthalocyanine (Nc) and rare earth phthalocyanine (RePc) molecules in an inorganic glassy borate matrix. Kumar, G. A.; Thomas, J.; George, N.; Nampoori, V. P. N.; Radhakrishnan, P.; Vallabhan, C. P. G.; Unnikrishnan, V. ,  Chem. Glasses  (2000),  41(4),  199-203. 
  5. Optical studies of phthalocyanine molecules in PVA film. Thomas, J.; Kumar, G. A.; Unnikrishnan, N. V.; Nampoori, V. P. N.; Vallabhan, C. P. G., Mater. Lett.  (2000), 44(5), 275-278. 
  6. Physical and optical properties of phthalocyanine doped inorganic glasses. Kumar, G. A.; Thomas, J.; George, N.; Unnikrishnan, N. V.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. ,  Mater. Sci. (2000) 35(10),2539.
  7. Optical absorption studies of free (H2Pc) and rare earth (RePc) phthalocyanine doped borate glasses. Kumar, G. A.; Thomas, J.; George, N.; Kumar, B. A.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Unnikrishnan, N. V.,  Chem. Glasses  (2000),  41(2),  89-93.
  8. Dynamics of two coupled chaotic multimode Nd:YAG lasers with intracavity frequency doubling crystal. Kuruvilla, Thomas; Nandakumaran, V. M. ,  Pramana  (2000),  54(3),  393-402.
  9. Experimental investigation of optical limiting and thermal lensing in toluene solutions of C70. Bindhu, C. V.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G.  , Appl. Phys. B: Lasers Opt.  (2000), 70(3), 429-434. 
  10. Photoacoustic investigation of the effect of excess lead oxide on thermal diffusivity of PLZT ceramic. George, N. A.; Paul, T.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Sebastian, M. T.  ,   Mater. Sci. Lett.  (2000), 19(6), 499-501.
  11. Fading of thermoluminescence from CaS and CaS:Ce phosphors. Joseph, James; Ananthakrishnan, T. R.; Nampoori, V. P. N.; Warier, M. K. Rudra. Indian J. Phys., A (2000), 74A(1), 21-24.

  

Year 1999

  1. Thermal diffusivity of some polymer supported halogeno benzimidazole complexes of cobalt(II) and copper(II) – a photoacoustic study. Raman, S. Sankara; Nampoori, V. P. N.; Vallabhan, C. P. G.; Saravanan, N.; Yusuff, K. K. Mohammed. ,  Mater. Sci. Lett.  (1999),  18(23),  1887-1889. 
  2. Solvent effect on absolute fluorescence quantum yield of rhodamine 6G determined using transient thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G. ,  Phys. Lett. B  (1999),13(16),  563-576.
  3. Evaluation of electrical conductivity and thermal diffusivity of vanadyl naphthalocyanine. Thomas, J.; Pillai, V. N. S.; Nampoori, V. P. N.; Vallabhan, C. P. G., J. Mater. Sci. Lett.  (1999),  18(12),  963-964.
  4. Photoacoustic study on photobleaching of Rhodamine 6G doped in poly (methyl methacrylate). George, Nibu A.; Aneeshkumar, B.; Radhakrishnan, P.; Vallabhan, C. P. G. , Phys. D: Appl. Phys.  (1999), 32(14),1745.
  5. Optical limiting and thermal lensing studies in C60. Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G., J. Appl. Phys.  (1999),  86(3),  1388-1392.
  6. Monitoring the rate of pulsed laser deposition of silver thin films using a fiber optic sensor. John, M. Shelly; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.    SPIE-Int. Soc. Opt. Eng.  (1999),  3666 (Photonics India ’98), 574-577.                                                
  7. Investigation of nonlinear absorption and aggregation in aqueous solutions of rhodamine B using thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G., Pramana  (1999),  52(4),  435-442.
  8. Suppression of chaos through reverse period doubling in coupled directly modulated semiconductor lasers. Kuruvilla, Thomas; Nandakumaran, V. M. Lett. A  (1999),  254(1,2),  59-64.
  9. Studies of nonlinear absorption and aggregation in aqueous solutions of rhodamine 6G using a transient thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G. , J. Phys. D: Appl. Phys. (1999),  32(4),  407-411.
  10. A fiber optic evanescent wave sensor for monitoring the rate of pulsed laser deposition of metal thin films. John, M. Shelly; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. ,Meas. Sci. Technol.  (1999),  10(2),  n17-n20.
  11. Photoacoustic study of the effect of hydroxyl ion on thermal diffusivity of g alumina. Sankara Raman, S.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Ambadas, G.; Sugunan, S. , J. Appl. Phys.  (1999),  85(3),  1987-1988.
  12. Significance of time scales in nonlinear dynamical analysis of electroencephalogram signals. Indic P; Pratap R; Nampoori V P; Pradhan N International Journal Of Neuroscience (1999 Aug), 99(1-4), 181-94.

  

Year 1998

  1. Two and three photon absorption in rhodamine 6G methanol solutions using pulsed thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Kurian, Achamma; Nampoori, V. P. N.; Vallabhan, C. P. G. ,  Nonlinear Opt. Phys. Mater.  (1998), 7(4),  531-538.                                                               
  2. Thermal diffusivity measurements in organic liquids using transient thermal lens calorimetry. Bindhu, C. V.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G.,    Eng. (Bellingham, Wash.)  (1998),  37(10),  2791-2794.         
  3. A molecular electrostatic potential mapping study of some fluoroquinolone anti-bacterial agents. Chidangil, Santhosh; Shukla, Manoj K.; Mishra, Phool C.    Mol. Model.  (1998),  4(8),  250-258.       
  4. An optical fiber based evanescent wave sensor to monitor the deposition rate of thin films. Jose, Deepa; John, M. Shelly; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. , Thin Solid Films  (1998),  325(1,2), 264-267.      
  5. Twin peak distribution of electron emission profile and impact ionization of ambient molecules during laser ablation of silver target. Issac, Riju C.; Gopinath, Pramod; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G. , Appl. Phys. Lett.  (1998),  73(2),  163-165.
  6. Use of mirage effect for the detection of phase transitions in liquid crystals. Rajasree, K.; Vidyalal, V.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; George, A. K. , Cochin,      Mater. Lett.  (1998),  36(1-4),  76-80.      
  7. Dynamics of laser produced silver plasma under film deposition conditions studied using optical emission spectroscopy. Issac, Riju C.; Vasudevan Pillai, K.; Harilal, S. S.; Varier, Geetha K.; Bindhu, C. V.; Gopinath, Pramod; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. , Appl. Surf. Sci.  (1998),  125(2),  227-235.       
  8. Influence of ambient gas on the temperature and density of laser produced carbon plasma. Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G.,  Phys. Lett.  (1998),  72(2),  167-169.         
  9. Prompt electron emission and collisional ionization of ambient gas during pulsed laser ablation of silver. Issac, R. C.; Varier, G. K.; Gopinath, P.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G. Appl. Phys. A: Mater. Sci. Process. (1998), A67(5), 557-561.      
  10. Collective behavior of laser-produced plasma from a multicomponent YBa2Cu3O7 target in air. Issac, R. C.; Varier, G. K.; Harilal, S. S.; Nampoori, V. P. N.; Vallabhan, C. P. G. Appl. Phys. B: Lasers Opt. (1998), B67(5), 647-651.             
  11. Time evolution of the electron density and temperature in laser-produced plasmas from YBa2Cu3O7. Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. Appl. Phys. B: Lasers Opt. (1998), B66(5), 633-638.
  12. Temporal and spatial behavior of electron density and temperature in a laser-produced plasma from YBa2Cu3O7. Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. Appl. Spectrosc. (1998), 52(3), 449-455.

  

Year 1997

  1. Anomalous profile of a self-reversed resonance line from Ba+ in a laser produced plasma from YBa2Cu3O7. Issac, Riju C.; Harilal, S. S.; Bindhu, C. V.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G.    ,   Acta, Part B  (1997),  52B(12),  1791-1799.       
  2. Fine structure in the time of flight distribution of C2 in laser produced plasma from graphite. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G.   ,  Pramana  (1997),  49(3),  317-322.         
  3. Spatial analysis of C2 band emission from laser produced plasma. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. , Plasma Sources Sci. Technol.  (1997),  6(3),  317-322.       
  4. Time resolved study of CN band emission from plasma generated by laser irradiation of graphite. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Gopinath, Pramod; Nampoori, V. P. N.; Vallabhan, C. P. G. , Spectrochim. Acta, Part A  (1997),  53A(10),  1527-1536.        
  5. Electron density and temperature measurements in a laser produced carbon plasma. Harilal, S. S.; Bindhu, C. V.; Issac, Riju C.; Nampoori, V. P. N.; Vallabhan, C. P. G.     Appl. Phys.  (1997),  82(5),  2140-2146.      
  6. Optical emission studies of C2 species in laser-produced plasma from carbon. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G.    Phys. D: Appl. Phys.  (1997),  30(12), 1703-1709.      
  7. Emission characteristics and dynamics of C2 from laser-produced graphite plasma. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. , J. Appl. Phys.  (1997),  81(8, Pt. 1),  3637-3643.      
  8. Photoacoustic signal saturation and optical limiting in C70-toluene solution. Issac, Riju C.; Harilal, S. S.; Varier, Geetha K.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G.,  Eng. (Bellingham, Wash.)  (1997),  36(2),  332-336.
  9. Induction of mitotic chromosomal aberrations by lasers in comparison to gamma radiations. Pillai, P. R. Unnikrishna; Nambisan, Padma; Nampoori, V. P. N.; Vallabhan, C. P. G.. Yichuan (1997), 19(5), 5-9.
  10. Possibility of waveguide formation on organic nonlinear crystal methyl para-hydroxy benzoate using high energy ion irradiation. Sreeramana Aithal, P.; Nagaraja, H. S.; Mohan Rao, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; Avasthi, D. K. Nucl. Instrum. Methods Phys. Res., Sect. B (1997), 129(2), 217-220.
  11. Investigations on nanosecond laser produced plasma in air from the multi-component material YBa2Cu3O7. Varier, Geetha K.; Isaac, Riju C.; Harilal, S. S.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. Spectrochim. Acta, Part B (1997), 52B(5), 657-666.
  12. Time resolved analysis of C2 emission from laser induced graphite plasma in helium atmosphere. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G.. Jpn. J. Appl. Phys., Part 1 (1997), 36(1A), 134-138.  

  

Year 1996

  1. A fiber optic sensor to measure surface tension. Deepthy, A.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. , J. Phys., B  (1996),  70B(6),  527-530.
  2. Photoacoustic studies on multilayer dielectric coatings. Philip, Annieta; Radhakrishnan, P.; Nampoori, V. P.; Vallabhan, C. P. G.,  Phys. D:  Appl. Phys.  (1996),  29(5),  1387-1388.        
  3. Spatial and time resolved analysis of CN bands in the laser induced plasma from graphite. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G., Pramana  (1996),  46(2),  145-151.
  4. Measurement of thermal diffusivity of some halogeno benzimidazole complexes of cobalt(II), copper(II) and copper(I) using laser induced photoacoustic effect. Raman, S. Sankara; Nampoori, V. P. N.; Vallabhan, C. P. G.; Saravanan, N.; Yusuff, K. K. Mohammed.  Mater. Sci. Lett. (1996), 15(3),230.
  5. Photoemission optogalvanic studies with copper as target electrode. K.C. Ajithprasad, VPN Nampoori and CPG Vallabhan, App. Surf. Sci.,(1996),103 (4), 465.     
  6. Pulsed photoacoustic determination of absolute fluorescent quantum yield of the laser dye rhodamine B. Bindhu, C. V.; Harilal, S. S.; Issac, Riju C.; Nampoori, V. P. N.; Vallabhan, C. P. G. Phys. Lett. B (1996), 10(22), 1103-1110.
  7. Characterization of potassium doped GdBa2Cu3O7-d using Raman spectroscopy and x-ray diffraction. [Erratum to document cited in CA124:329709]. Thomas, Preethi Cicily; Manoj, Jumar K.; Nayar, V. Unnikrishnan; Vidyalal, V.; Vallabhan, C. P. G. Mod. Phys. Lett. B (1996), 10(23), 1159.
  8. Study of laser ablation in liquids using pulsed photoacoustic technique. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. Mod. Phys. Lett. B (1996), 10(21), 1053-1057.
  9. Temporal and spatial evolution of C2 in laser-induced plasma from graphite target. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Nampoori, V. P. N.; Vallabhan, C. P. G. J. Appl. Phys. (1996), 80(6), 3561-3565.       
  10. Measurements of electromagnetic shielding effect using HTSC materials. Vidyalal, V.; Rajasree, K.; Vallabhan, C. P. G.. Opto-Electronic Lab., Cochin Univ. of Sci. and Technology, Cochin, India. Mod. Phys. Lett. B (1996), 10(7), 293-297.
  11. Electron density determination of laser induced plasma from polymethyl methacrylate using phaseshift detection techniques. Varier, Geetha K.; Harilal, S. S.; Bindhu, C. V.; Issac, Riju C.; Nampoori, V. P. N.; Vallabhan, C. P. G.. Mod. Phys. Lett. B (1996), 10(6), 235-239.
  12. A study of photoacoustic effects and optical limiting in the solution of C60 in toluene. Issac, Riju C.; Bindhu, C. V.; Harilal, S. S.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G. Mod. Phys. Lett. B (1996), 10(1 & 2), 61-67.
  13. Measurement of the absolute fluorescence quantum yield of rhodamine B solution using a dual-beam thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Varier, Geetha K.; Issac, Riju C.; Nampoori, V. P. N.; Vallabhan, C. P. G. J. Phys. D: Appl. Phys. (1996), 29(4), 1074-9. 
  14. Measurement of the absolute fluorescence quantum yield of rhodamine B solution using a dual-beam thermal lens technique. Bindhu, C. V.; Harilal, S. S.; Varier, Geetha K.; Issac, Riju C.; Nampoori, V. P. N.; Vallabhan, C. P. G. J. Phys. D: Appl. Phys. (1996), 29(4), 1074-9. 
  15. Electrical conductivity and thermal diffusivity of zinc naphthalocyanine. Thomas, J.; Pillai, V. N. Sivasankara; Xavier, E.; Vallabhan, C. P. G.. J. Mater. Sci. Lett. (1996), 15(2), 151-2.
  16. Evanescent wave sensor to monitor the etching rate of an optical fiber. Lovely, M. R.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G. Indian J. Pure Appl. Phys. (1996), 34(1), 34-5.

  

Year 1995

  1. Photoacoustic study of the effect of degassing temperature on thermal diffusivity of hydroxyl loaded alumina. Raman, S. Sankara; Nampoori, V. P. N.; Vallabhan, C. P. G.; Ambadas, G.;Sugunan,S. Appl. Phys. Lett.(1995),67(20),2939.     
  2. Photoemission optogalvanic effect near the instability region of a hollow cathode discharge. Sasi Kumar, P. R.; Nampoori, V. P. N.; Vallabhan, C. P. G, Optical Communication (1995), 118(5,6), 525-8.      
  3. Characterization of potassium-doped GdBa2Cu3O7-d using Raman spectroscopy and x-ray diffraction. Thomas, Preethi Cicily; Manoj, Kumar K.; Nayar, V. Unnikrishnan; Vidyalal, V.; Vallabhan, C. P. G . Mod. Phys. Lett. B (1995), 9(26 & 27), 1739-52.
  4. Laser induced thermal lens effect in rhodamine B – signature of resonant two photon absorption. Bindhu, C. V.; Harilal, S. S.; Issac, Riju C.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G.. Mod. Phys. Lett. B (1995), 9(22), 1471-7.
  5. CW-Ar+ laser induced structural and optical properties of amorphous Sb2Se3 films. Jayakumar, S.; Balasubramanian, C.; Narayandass, Sa. K.; Mangalaraj, D.; Vallabhan, C. P. G. Vallabhan. Mater. Res. Bull. (1995), 30(9), 1141-51.
  6. Observation of multiphoton process in liquid CS2 using pulsed photoacoustic technique. Harilal, S. S.; Issac, Riju C.; Bindhu, C. V.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G. Mod. Phys. Lett. B (1995), 9(14), 871-6.
  7. Pulsed photoacoustic technique to study nonlinear processes in liquids: results in toluene. Bindhu, C. V.; Harilal, S. S.; Issac, Riju C.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G. Pramana (1995), 44(3), 231-5.
  8. Anomalous variation of thermal lens signal with concentration from Rhodamine B in methanol solution. Bindhu, C. V.; Harilal, S. S.; Issac, Riju C.; Varier, Geetha K.; Nampoori, V. P. N.; Vallabhan, C. P. G. Pramana (1995), 44(3), 225-9.
  9. Subcritical Hopf bifurcation in Ne-Nd hollow cathode discharge. Sasi Kumar, P. R.; Nampoori, V. P. N.; Vallabhan, C. P. G. Phys. Lett. A (1995), 199(5,6), 416.
  10. Detection of phase transitions in liquid crystals using the mirage effect. Rajasree, K.; Vidyalal, V.; Radhakrishnan, P.; Nampoori, V. P. N.; Vallabhan, C. P. G.; george, A. K. Liq. Cryst. (1995), 18(1), 167-9.