Dr. S. Geetha Nayar Kumari Profile

Dr. S. Geetha Nayar Kumari

at Univ of Kerala

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Author

Publications (7)

Proceedings Article | 31 January 2008 Paper

Extraordinary properties of nematic phases of bent-core liquid crystals

R. Teeling, J. Kim, A. Jákli, G. Nair, N. Éber, M. Chambers, S. Sprunt, J. Harden, M. Madhabi, J. Gleeson, Q. Li, K. Fodor-Csorba

Proceedings Volume 6911, 691105 (2008) https://doi.org/10.1117/12.768866

KEYWORDS: Liquid crystals, Molecules, Light scattering, Scattering, Temperature metrology, Dynamic light scattering, Chlorine, Polarization, Liquids, Crystals

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Proceedings Article | 28 January 2005 Paper

Optical limiting behavior of 4 (2'- hydroxy- naphthyl azo) antipyrine (H-NAP) and its rare-earth complexes

K. Bindra, C.I. Muneera, S. Kumari Geetha

Proceedings Volume 5646, (2005) https://doi.org/10.1117/12.577152

KEYWORDS: Optical limiting, Absorption, Dysprosium, Lanthanum, Chromophores, Refractive index, Nonlinear optics, Chlorine, Solids, Transmittance

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Proceedings Article | 28 January 2005 Paper

Nonlinear absorption and refraction of neutral red dye in solid and solution forms

P.G. Louie Frobel, S. Kumari Geetha, C.I. Muneera, S.R.A. Suresh, Mathew George, K. Bindra

Proceedings Volume 5646, (2005) https://doi.org/10.1117/12.576614

KEYWORDS: Solids, Absorption, Nonlinear optics, Refraction, Chromophores, Saturable absorption, Complex systems, Transmittance, Nd:YAG lasers, Polymers

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Proceedings Article | 30 April 2003 Paper

Light shutters and electro-optical storage devices from antiferroelectric liquid crystals of bent-shape molecules

Gerd Heppke, Katalin Fodor-Csorba, Sebastian Rauch, Daniel Kruerke, Philippe Bault, Liang-Chi Chien, Antal Jakli, Hans Sawade, Geetha Nair

Proceedings Volume 5003, (2003) https://doi.org/10.1117/12.482348

KEYWORDS: Scattering, Transmittance, Light scattering, Liquid crystals, Molecules, Switching, Camera shutters, Laser scattering, Polarization, Polarizers

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SPIE Journal Paper | 1 December 2002

Microbent optical fibers as evanescent wave sensors

S. Lee, K. Geetha, V. Nampoori, C. Vallabhan, Periasamy Radhakrishnan

OE, Vol. 41, Issue 12, (December 2002) https://doi.org/10.1117/12.10.1117/1.1519243

KEYWORDS: Sensors, Cladding, Optical fibers, Fiber optics sensors, Wave sensors, Absorption, Biological and chemical sensing, Modulation, Remote sensing, Fiber optics

Proceedings Article | 9 September 2002 Paper

Microbent optical fiber for refractive index measurement

P. Sureshkumar, V. Nampoori, Periasamy Radhakrishnan, Thomas Lee, K. Geetha, C. Vallabhan

Proceedings Volume 4920, (2002) https://doi.org/10.1117/12.481976

KEYWORDS: Optical fibers, Refractive index, Cladding, Sensors, Biological and chemical sensing, Liquids, Photonics, Fiber optics sensors, Semiconductor lasers, Absorption

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Proceedings Article | 28 August 2002 Paper

Optical loss coefficient in plastic waveguides

S. Lee, Pramod Gopinath, K. Geetha, Periasamy Radhakrishnan, K. Unnikrishnan, C. Vallabhan, V. Nampoori

Proceedings Volume 4904, (2002) https://doi.org/10.1117/12.481251

KEYWORDS: Waveguides, Luminescence, Light wave propagation, Signal attenuation, Planar waveguides, Wave propagation, Polymers, Absorption, Geometrical optics, Light sources

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Showing 5 of 7 publications

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