Prof. Jayan Thomas Profile

Prof. Jayan Thomas

Assistant Professor

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 25 August 2017 Presentation + Paper

Presentation + Paper

Enhanced nonlinear optical limiting in TiS2 dichalcogenide 2D Sheets

Jitesh Kumar, Sreekanth Varma, Yang Liu, Katherine Layne, Jingjie Wu, Chenglu Liang, Yusuke Nakanishi, Amir Aliyan, Wei Yang, Pulickel Ajayan, Jayan Thomas

Proceedings Volume 10360, 103600A (2017) https://doi.org/10.1117/12.2275631

KEYWORDS: Optical limiting, Graphene, Quantum dots, Transition metals, Nonlinear optics, Sensors, Laser irradiation, Titanium, Molybdenum, Laser applications

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Proceedings Article | 25 September 2013 Paper

Paper

Enhanced gain dynamics in photorefractive polymers

C. Liebig, S. Basun, S. Buller, D. Evans, P. Banerjee, P. A. Blanche, C. Christenson, N. Peyghambarian, J. Thomas

Proceedings Volume 8847, 88470A (2013) https://doi.org/10.1117/12.2023404

KEYWORDS: Electrons, Polymers, Photorefractive polymers, Electroluminescent displays, Ions, Neodymium, Chromophores, Analytical research, Manufacturing, Electro optics

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Proceedings Article | 10 September 2013 Paper

Paper

Recent advances in optical limiting properties of fluorinated graphene oxides

Panit Chantharasuapwong, Reji Philip, Narayanan Narayanan, Parambath Sudeep, Akshay Mathkar, Pulickel Ajayan, Jayan Thomas

Proceedings Volume 8827, 88270G (2013) https://doi.org/10.1117/12.2023768

KEYWORDS: Graphene, Optical limiting, Oxides, Carbon, Nonlinear optics, Fluorine, Absorption, Scattering, Photoacoustic spectroscopy, Lithium

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Proceedings Article | 17 September 2011 Paper

Paper

Recent advances in photorefractive polymers

Jayan Thomas, C. Christenson, B. Lynn, P.-A. Blanche, R. Voorakaranam, R. Norwood, M. Yamamoto, N. Peyghambarian

Proceedings Volume 8113, 811302 (2011) https://doi.org/10.1117/12.897093

KEYWORDS: Polymers, Composites, 3D displays, Holography, Chromophores, Diffraction, Photorefractive polymers, Holograms, 3D image processing, Glasses

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Proceedings Article | 17 September 2011 Paper

Paper

Optical nonlinearity and power limiting in organic molecules and nanocomposites

Reji Philip, Jayan Thomas

Proceedings Volume 8113, 81130J (2011) https://doi.org/10.1117/12.897117

KEYWORDS: Nonlinear optics, Polymers, Nanocomposites, Molecules, Absorption, Four wave mixing, Electrons, Polymer thin films, Composites, Semiconductors

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Proceedings Article | 24 August 2010 Paper

Paper

Hybrid DNA materials for energy storage

R. Norwood, J. Thomas, N. Peyghambarian, J. Wang, L. Li, F. Ouchen, J. Grote

Proceedings Volume 7765, 77650H (2010) https://doi.org/10.1117/12.862412

KEYWORDS: Dielectrics, Nanoparticles, Capacitors, Thin films, Composites, Sol-gels, Ferroelectric materials, Nanocomposites, Dielectric breakdown, Polymers

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Proceedings Article | 23 August 2010 Paper

Paper

Nanoimprinted photonic devices

Jayan Thomas, Palash Gangopadhyay, Ramon Munoz, N. Peyghambarian

Proceedings Volume 7788, 778802 (2010) https://doi.org/10.1117/12.861819

KEYWORDS: Polymers, Nanostructures, Nanoimprint lithography, Photonic devices, Nanolithography, Fabrication, Composites, Nanophotonics, Ultraviolet radiation, Printing

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Proceedings Article | 1 March 2010 Paper

Paper

Complementary grating dynamics in photorefractive polymers with Alq3

Cory Christenson, Jayan Thomas, Pierre-Alexandre Blanche, Ram Voorakaranam, Robert Norwood, Michiharu Yamamoto, N. Peyghambarian

Proceedings Volume 7599, 759905 (2010) https://doi.org/10.1117/12.841039

KEYWORDS: Electron transport, Photorefractive polymers, Absorption, Polymers, Composites, Ocean optics, Molecules, Aluminum, Holography, Dielectrics

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Proceedings Article | 11 February 2010 Paper

Paper

Future of photorefractive based holographic 3D display

P.-A. Blanche, A. Bablumian, R. Voorakaranam, C. Christenson, D. Lemieux, J. Thomas, R. Norwood, M. Yamamoto, N. Peyghambarian

Proceedings Volume 7619, 76190L (2010) https://doi.org/10.1117/12.841442

KEYWORDS: Holograms, Holography, 3D displays, Pulsed laser operation, Multiplexing, Video, Eye, Photorefractive polymers, Medical imaging, Manufacturing

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Proceedings Article | 21 August 2009 Paper

Paper

Transmission, reflection, and absorption gratings in photorefractive polymers

Partha Banerjee, Gary Cook, Dean Evans, J. Wofford, P.-A. Blanche, J. Thomas, N. Peyghambarian

Proceedings Volume 7420, 74200H (2009) https://doi.org/10.1117/12.826999

KEYWORDS: Phase shifts, Absorption, Polymers, Refractive index, Diffusion, Reflection, Crystals, Photorefractive polymers, Energy transfer, Einsteinium

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Proceedings Article | 11 February 2008 Paper

Paper

Polymer nanocomposite infiltration of silicon photonic crystals

Savaş Tay, Jayan Thomas, Babak Momeni, Murtaza Askari, Peter Hotchkiss, Simon Jones, Seth Marder, Ali Adibi, Robert Norwood, N. Peyghambarian

Proceedings Volume 6901, 690114 (2008) https://doi.org/10.1117/12.778568

KEYWORDS: Polymers, Nanocomposites, Nanoparticles, Photonic crystals, Refractive index, Crystals, Photorefractive polymers, Composites, Silicon photonics, Titanium dioxide

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Proceedings Article | 6 October 2006 Paper

Paper

Photorefractive polymer in reflection geometry with large efficiency

Muhsin Eralp, Jayan Thomas, Savaş Tay, Guoqiang Li, Robert Norwood, Nasser Peyghambarian

Proceedings Volume 6331, 63310B (2006) https://doi.org/10.1117/12.702834

KEYWORDS: Diffraction, Reflection, Polymers, Diffraction gratings, Photorefractive polymers, Refractive index, Chromophores, Composites, Birefringence, Holograms

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Proceedings Article | 14 September 2006 Paper

Paper

New organic infiltrants for 2-D and 3-D photonic crystals

Robert Norwood, Hiroshi Sumimura, Savaş Tay, Konstantin Yamnitsky, Alexander Kropachev, Jayan Thomas, Nasser Peyghambarian, J. H. Moon, Shu Yang, Terje Skotheim

Proceedings Volume 6331, 63310A (2006) https://doi.org/10.1117/12.684056

KEYWORDS: Photonic crystals, Refractive index, Silicon, Metals, Chemical vapor deposition, Carbon, Polymers, Infrared radiation, Diffraction, Glasses

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Proceedings Article | 13 September 2006 Paper

Paper

Photorefractive polymers with sub-millisecond response time

Jayan Thomas, Muhsin Eralp, Savaş Tay, Guoqiang Li, Peng Wang, Michiharu Yamamoto, Axel Schülzgen, Robert Norwood, Nasser Peyghambarian

Proceedings Volume 6335, 633503 (2006) https://doi.org/10.1117/12.681879

KEYWORDS: Diffraction, Polymers, Holography, Composites, Photorefractive polymers, Holograms, Diffraction gratings, Chromophores, Absorption, Pulsed laser operation

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Proceedings Article | 30 August 2006 Paper

Paper

Efficient local fixing of photorefractive polymer holograms using a laser beam

Guoqiang Li, Peng Wang, Muhsin Eralp, Jayan Thomas, R. Norwood, Michi Yamamoto, N. Peyghambarian

Proceedings Volume 6314, 631401 (2006) https://doi.org/10.1117/12.681461

KEYWORDS: Holograms, Polymers, Gas lasers, Holography, Carbon monoxide, Glasses, Photorefractive polymers, Sapphire, Diffraction, Data storage

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Proceedings Article | 30 August 2005 Paper

Paper

Lanthanide nanoparticle doped low-loss sol-gel amplifier materials

Haiyong Gan, Robert Norwood, Li Li, Christopher DeRose, Jianfeng Wu, Jayan Thomas, M. Amir Fardad, Axel Schuelzgen, Nasser Peyghambarian, Channa De Silva, Zhiping Zheng

Proceedings Volume 5935, 59350D (2005) https://doi.org/10.1117/12.619565

KEYWORDS: Erbium, Nanoparticles, Sol-gels, Ions, Lanthanum, Refractive index, Waveguides, Polymers, Absorption, Optical amplifiers

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Organic-inorganic hybrid sol-gel materials have attracted increasing attention in recent years as low-cost, rugged materials for integrated optical devices such as optical couplers, splitters, and electro-optic modulators. These materials can be easily processed by spin-coating, wet-etching photolithography, and low-temperature baking. Precise control of waveguide core-cladding refractive indices produces well-confined low-loss propagation and good matching of the absolute refractive index to that of fused silica results in low optical coupling loss to optical fiber. The increased thermal and mechanical stability of these materials, relative to optical polymers, results in numerous packaging options and improved reliability. However organic-inorganic hybrid sol-gel materials have not yet been often used as host of active dopants such as erbium (III) ions for 1550nm optical amplification. This limitation owes primarily to matrix and chelate dominated nonradiative relaxation processes, as high phonon energy OH and OH-like oscillators can bridge off the energy from the excited erbium (III) ions at very high rates. Different strategies have been proposed to protect erbium (III) ions from matrix and chelate quenching, including host and ligand fluorination, and inorganic microstructure shielding. Here we report on our work of encapsulating erbium (III) ions in transparent, refractive index matched, and highly re-dispersible lanthanum phosphate nanoparticles and the work of examining the optical properties of these nanoparticles as active dopants in organic-inorganic hybrid sol-gels adopting 2-methacryloxypropyl trimethoxysilane (MAPTMS) as a precursor. 980nm laser pumped photoluminescence at 1535nm was obtained from solid bulk samples of 300mg La.₉₉Er.₀₁PO₄ nanoparticles doped in 1mL hybrid sol-gel. Thick bulk samples of this composition exhibited exceptional clarity and little trace of nanoparticle scattering effects. The lifetime of the nanoparticle doped hybrid sol-gel composite was measured to be 220μs, indicating an intermediate relaxation rate between that of an erbium organic complex and annealed erbium doped glass. La.₉₉Er.₀₁PO₄ nanoparticle doped hybrid sol-gel films were also prepared and the refractive index was measured to be 1.4966 at 1550nm, which is very close to that of optical fiber and provides a suitable index difference from an undoped and metal oxide tuned sol-gel at 1.4870 to comprise an efficient single-mode waveguide system.

Proceedings Article | 26 October 2004 Paper

Paper

Near-infrared photorefractive polymer composites with high diffraction efficiency and fast response time

Jayan Thomas, Muhsin Eralp, Savas Tay, Guogiang Li, Seth Marder, Gerald Meredith, Axel Schulzgen, Robert Norwood, Nasser Peyghambarian

Proceedings Volume 5521, (2004) https://doi.org/10.1117/12.563829

KEYWORDS: Composites, Diffraction, Chromophores, Modulation, Absorption, Polymers, Birefringence, Photorefractive polymers, Telescopic pixel displays, Refractive index

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Proceedings Article | 26 October 2004 Paper

Paper

Trapping mechanisms and dynamics in bis-triarylamine-based photorefractive polymer composites

Canek Fuentes-Hernandez, Jayan Thomas, Gerald Meredith, Nasser Peyghambarian, Seth Marder, Bernard Kippelen

Proceedings Volume 5521, (2004) https://doi.org/10.1117/12.562924

KEYWORDS: Composites, Chromophores, Polymers, Absorption, Photorefractive polymers, Spectroscopy, Numerical simulations, Molecules, Thermal modeling, Solids

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Proceedings Article | 8 December 2003 Paper

Paper

Photorefractive polymers based on bis-triarylamine side-chain polymers

Canek Fuentes-Hernandez, Jayan Thomas, Roberto Termine, Muhsin Eralp, Michiharu Yamamoto, Kevin Cammack, Kenji Matsumoto, Stephen Barlow, Gregory Walker, Gerald Meredith, Nasser Peyghambarian, Bernard Kippelen, Seth Marder

Proceedings Volume 5216, (2003) https://doi.org/10.1117/12.506490

KEYWORDS: Polymers, Composites, Photorefractive polymers, Holographic materials, Chromophores, Modulation, Phase shift keying

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Proceedings Article | 11 November 1999 Paper

Paper

NO2 detection with a fiber optic evanescent wave sensor

M.S. John, Jayan Thomas, K. Unnikrishnan, Periasamy Radhakrishnan, V. Nampoori, C. Vallabhan

Proceedings Volume 3897, (1999) https://doi.org/10.1117/12.369301

KEYWORDS: NOx, Sensors, Absorption, Wave sensors, Multimode fibers, Fiber optics, Fiber optics sensors, Metals, Optical fibers, Coating

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Showing 5 of 20 publications

Conference Committee Involvement (13)

Light Manipulating Organic Materials and Devices IV

6 August 2017 | San Diego, California, United States

Light Manipulating Organic Materials and Devices III

31 August 2016 | San Diego, California, United States

Light Manipulating Organic Materials and Devices II

11 August 2015 | San Diego, California, United States

Light Manipulating Organic Materials and Devices

20 August 2014 | San Diego, California, United States

Optical Processes in Organic Materials and Nanostructures II

25 August 2013 | San Diego, California, United States

Showing 5 of 13 Conference Committees

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