Dr. Lalgudi V. Natarajan Profile

Dr. Lalgudi V. Natarajan

Retired

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Author

Publications (38)

Proceedings Article | 12 September 2013 Paper

Effects of in-plane electric fields on the optical properties of cholesteric liquid crystals

Mariacristina Rumi, Vincent Tondiglia, Lalgudi Natarajan, Timothy White, Timothy Bunning

Proceedings Volume 8828, 882817 (2013) https://doi.org/10.1117/12.2023282

KEYWORDS: Electrodes, Reflectivity, Liquid crystals, Transmittance, Polarizers, Dielectrics, Anisotropy, Refractive index, Birefringence, Optical properties

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Proceedings Article | 2 February 2011 Paper

Liquid crystal Bragg filters

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Christopher Bailey, Madeline Duning, Anastasia Voevodin, Timothy White, Timothy Bunning

Proceedings Volume 7955, 79550S (2011) https://doi.org/10.1117/12.878500

KEYWORDS: Liquid crystals, Optical filters, Modulation, Dielectrics, Polymers, Birefringence, Diffraction, Tunable filters, Switching, Fiber Bragg gratings

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Proceedings Article | 18 August 2010 Paper

Non-symmetric broadening of the reflection notch in polymer stabilized cholesteric liquid crystals

Lalgudi Natarajan, Jimmy Voss, Vincent Tondiglia, Deng-Ke Yang, Timothy White, Timothy Bunning

Proceedings Volume 7775, 77750Z (2010) https://doi.org/10.1117/12.861367

KEYWORDS: Ultraviolet radiation, Liquid crystals, Polymerization, Polymers, Diffusion, Lamps, Absorption, Reflection, Light sources, Ultraviolet sources

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Proceedings Article | 3 February 2009 Paper

Lasing of pyrromethene 597 in 2D holographic polymer dispersed liquid crystals: influence of columnar conformation

Rachel Jakubiak, Vincent Tondiglia, Lalgudi Natarajan, Pamela Lloyd, Richard Sutherland, Richard Vaia, Timothy Bunning

Proceedings Volume 7232, 72320K (2009) https://doi.org/10.1117/12.810496

KEYWORDS: Photonic crystals, Liquid crystals, Polymers, Polarization, Holography, Scanning electron microscopy, Reflection, Photopolymerization, Diffraction, Crystals

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Proceedings Article | 28 August 2008 Paper

The structure of a polymer blend in a volume grating

Michael Birnkrant, Christopher Li, Lalgudi Natarajan, Vincent Tondiglia, Richard Sutherland, Pamela Lloyd, Rachel Jakubiak, Timothy Bunning

Proceedings Volume 7049, 70490M (2008) https://doi.org/10.1117/12.798322

KEYWORDS: Polymers, Holography, Transmission electron microscopy, Crystals, X-rays, Synchrotrons, Liquid crystals, Prisms, Polymerization, X-ray microscopy

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Proceedings Article | 27 August 2008 Paper

Enhancing the electro-optical properties of liquid crystal nanodroplets for switchable Bragg gratings

R. Sutherland, V. Tondiglia, L. Natarajan, P. Lloyd, T. Bunning

Proceedings Volume 7050, 705003 (2008) https://doi.org/10.1117/12.792629

KEYWORDS: Liquid crystals, Scattering, Diffraction, Diffraction gratings, Polymers, Nanodroplets, Transmittance, Fiber Bragg gratings, Polarization, Transmission electron microscopy

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Proceedings Article | 12 September 2007 Paper

Polarization dependent photoactuation in azobenzene LC polymers

Timothy White, J. Koval, V. Tondiglia, L. Natarajan, R. Vaia, S. Serak, V. Grozhik, N. Tabirian, Timothy Bunning

Proceedings Volume 6654, 665403 (2007) https://doi.org/10.1117/12.734670

KEYWORDS: Polymers, Liquid crystals, Polarization, Liquids, Holography, Crystals, Helium cadmium lasers, Photopolymerization, Ultraviolet radiation, Absorbance

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Proceedings Article | 12 September 2007 Paper

Tuning of a cholesteric filter having a negative dielectric anisotropy

Lalgudi Natarajan, Jeremy Wofford, Vincent Tondiglia, Richard Sutherland, Stephen Siwecki, Hilmar Koerner, Richard Vaia, Timothy Bunning

Proceedings Volume 6654, 66540A (2007) https://doi.org/10.1117/12.730860

KEYWORDS: Liquid crystals, Dielectrics, Dielectric filters, Anisotropy, Molecules, X-rays, Calorimetry, Scattering, X-ray diffraction, Liquids

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Proceedings Article | 12 February 2007 Paper

Liquid crystal Bragg gratings: dynamic optical elements for spatial light modulators

R. Sutherland, V. Tondiglia, L. Natarajan, J. Wofford, S. Siwecki, G. Cook, D. Evans, P. Lloyd, T. Bunning

Proceedings Volume 6487, 64870V (2007) https://doi.org/10.1117/12.710829

KEYWORDS: Liquid crystals, Fiber Bragg gratings, Modulation, Diffraction, Polymers, Diffraction gratings, Crystals, Transmittance, Polarization, Molecules

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Proceedings Article | 15 September 2006 Paper

Holographic polymer dispersed liquid crystal (HPDLC) transmission gratings formed by visible light initiated thiol-ene photopolymerization

Jeremy Wofford, Lalgudi Natarajan, Vincent Tondiglia, Richard Sutherland, Pamela Lloyd, Stephen Siwecki, Timothy Bunning

Proceedings Volume 6332, 63320Q (2006) https://doi.org/10.1117/12.682743

KEYWORDS: Liquid crystals, Polymers, Photopolymerization, Holography, Visible radiation, Diffraction gratings, Transmission electron microscopy, Spherical lenses, Krypton ion lasers, Glasses

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Proceedings Article | 30 August 2006 Paper

Influence of morphology on the lasing behavior of pyrromethene 597 in a holographic polymer dispersed liquid crystal reflection grating

Rachel Jakubiak, Dean Brown, Lalgudi Natarajan, Vincent Tondiglia, Pamela Lloyd, Richard Sutherland, Timothy Bunning, Richard Vaia

Proceedings Volume 6322, 63220A (2006) https://doi.org/10.1117/12.682255

KEYWORDS: Liquid crystals, Polymers, Holography, Photonic crystals, Polymerization, Electro optics, Dielectrics, Reflection, Diffraction, Diffraction gratings

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Proceedings Article | 22 August 2005 Paper

Visible light initiated thiol-ene based reflection H-PDLCs

Lalgudi Natarajan, Dean Brown, Jeremy Wofford, Vincent Tondiglia, Richard Sutherland, Pam Lloyd, Rachel Jakubiak, Richard Vaia, Timothy Bunning

Proceedings Volume 5936, 59360F (2005) https://doi.org/10.1117/12.617376

KEYWORDS: Remote sensing, Ultraviolet radiation, Rhodamine, Liquid crystals, Holography, Polymerization, Absorption, Visible radiation, Reflection, Photopolymerization

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Proceedings Article | 4 April 2005 Paper

Stimulated emission from pyrromethene 597 in holographic polymer dispersed liquid crystal structures

Rachel Jakubiak, Vincent Tondiglia, Lalgudi Natarajan, Richard Sutherland, Pamela Lloyd, Timothy Bunning, Richard Vaia

Proceedings Volume 5724, (2005) https://doi.org/10.1117/12.591048

KEYWORDS: Holography, Liquid crystals, Polymers, Dielectrics, Diffraction gratings, Luminescence, Optical pumping, Laser damage threshold, Photons, Dielectric polarization

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Proceedings Article | 16 December 2004 Paper

Effect of adding a multifunctional acrylate on the electro-optical properties of reflection gratings formed by thiol-ene photopolymerization

Lagudi Natarajan, Jay Klosterman, Vincent Tondiglia, Richard Sutherland, Pamela Lloyd, Timothy Bunning

Proceedings Volume 5621, (2004) https://doi.org/10.1117/12.579365

KEYWORDS: Polymers, Polymerization, Photopolymerization, Liquid crystals, Switching, Ultraviolet radiation, Electro optics, Reflection, Spherical lenses, Holography

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Proceedings Article | 14 October 2004 Paper

Dynamic holographic polymer dispersed liquid crystals

Augustine Urbas, Jay Klosterman, Vincent Tondiglia, Lalgudi Natarajan, Richard Sutherland, Nelson Tabirian, Tomiki Ikeda, Timothy Bunning

Proceedings Volume 5511, (2004) https://doi.org/10.1117/12.560014

KEYWORDS: Liquid crystals, Polymers, Holography, Ultraviolet radiation, Diffraction, Optical properties, Absorption, Photonic crystals, Visible radiation, Diffraction gratings

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Proceedings Article | 5 January 2004 Paper

Effect of gel-point versus conversion on the real-time dynamics of holographic polymer-dispersed liquid crystal (HPDLC) formation

Timothy Bunning, Lalgudi Natarajan, Vincent Tondiglia, Richard Sutherland

Proceedings Volume 5213, (2004) https://doi.org/10.1117/12.505846

KEYWORDS: Liquid crystals, Diffraction, Polymers, Holography, Chemistry, Refractive index, Ultraviolet radiation, Polymerization, Photopolymerization, Diffraction gratings

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Proceedings Article | 8 December 2003 Paper

Volume hologram formation in liquid-crystal/photopolymer mixtures

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning

Proceedings Volume 5216, (2003) https://doi.org/10.1117/12.504865

KEYWORDS: Diffraction gratings, Diffraction, Polymers, Data modeling, Liquid crystals, Holograms, Polymerization, Holography, Diffusion, Volume holography

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Proceedings Article | 14 July 2003 Paper

Holographic photopolymerization for fabrication of electrically switchable inorganic-organic hybrid photonic structures

Rachel Jakubiak, Dean Brown, Fatma Vatansever, Vincent Tondiglia, Lalgudi Natarajan, David Tomlin, Timothy Bunning, Richard Vaia

Proceedings Volume 4991, (2003) https://doi.org/10.1117/12.479443

KEYWORDS: Liquid crystals, Nanoparticles, Polymers, Holography, Zinc oxide, Photopolymerization, Diffraction, Refractive index, Diffraction gratings, Quantum dots

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Proceedings Article | 30 April 2003 Paper

Holographic polymer-dispersed liquid crystals in display applications

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning

Proceedings Volume 5003, (2003) https://doi.org/10.1117/12.473863

KEYWORDS: Polymers, Diffraction, Liquid crystals, Switching, Diffraction gratings, LCDs, Ultraviolet radiation, Holography, Projection systems, Polarization

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Proceedings Article | 11 December 2001 Paper

Switchable holograms for displays and telecommunications

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, S. Siwecki, Suresh Chandra, Timothy Bunning

Proceedings Volume 4463, (2001) https://doi.org/10.1117/12.449934

KEYWORDS: Holograms, Polarization, Liquid crystals, Diffraction, Diffraction gratings, Polymers, Holography, Telecommunications, Modulation, Holographic optical elements

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Proceedings Article | 4 October 1999 Paper

Spectroscopic investigations of dithienyl polyenes

Thomas Cooper, Laura Sowards, Lalgudi Natarajan, Sean Kirkpatrick, Suresh Chandra, Daniel McLean, Charles Spangler

Proceedings Volume 3798, (1999) https://doi.org/10.1117/12.363877

KEYWORDS: Absorption, Luminescence, Spectroscopy, Molecules, Quantum efficiency, Data modeling, Fluorescence spectroscopy, Dielectrics, Thermal effects, Silver

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Proceedings Article | 4 October 1999 Paper

Spectroscopy and nonlinear optical absorption of bis(diphenylamino) diphenyl polyenes

Lalgudi Natarajan, Sean Kirkpatrick, Richard Sutherland, Paul Fleitz, Thomas Cooper, Laura Sowards, Charles Spangler, Benjamin Reeves

Proceedings Volume 3798, (1999) https://doi.org/10.1117/12.363876

KEYWORDS: Absorption, Luminescence, Molecules, Spectroscopy, Quantum efficiency, Two photon excitation microscopy, Signal detection, Single photon, Optical spectroscopy, Absorption spectroscopy

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Proceedings Article | 1 June 1999 Paper

Holographic PDLCs for spatial light intensity modulation

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Robert Pogue, S. Siwecki, Donna Brandelik, Bob Epling, Eugene Berman, Christine Wendel, Mark Schmitt

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349330

KEYWORDS: Holograms, Diffraction, Modulation, Switching, Scattering, Holography, Light scattering, Spatial light modulators, Polymers, Diffraction gratings

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Proceedings Article | 14 October 1998 Paper

Controlling nanoscale morphology in switchable PDLC gratings

Robert Pogue, Lalgudi Natarajan, Vincent Tondiglia, S. Siwecki, Richard Sutherland, Timothy Bunning

Proceedings Volume 3475, (1998) https://doi.org/10.1117/12.326903

KEYWORDS: Liquid crystals, Electro optics, Polymerization, Polymers, Electro optic polymers, Diffraction, Liquids, Spherical lenses, Composites, Anisotropy

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Proceedings Article | 12 October 1998 Paper

Spectroscopy of a,w-dithienyl polyenes: evidence for two-photon absorption states from fluorescence studies

Lalgudi Natarajan, Sean Kirkpatrick, Richard Sutherland, Laura Sowards, Charles Spangler, Paul Fleitz, Thomas Cooper

Proceedings Volume 3472, (1998) https://doi.org/10.1117/12.326884

KEYWORDS: Absorption, Luminescence, Spectroscopy, Fluorescence spectroscopy, Femtosecond phenomena, Signal detection, Chemistry, Polarons, Picosecond phenomena, Laser systems engineering

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Proceedings Article | 17 June 1998 Paper

Switchable holograms for displays and other applications

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning

Proceedings Volume 3421, (1998) https://doi.org/10.1117/12.311048

KEYWORDS: Holograms, Diffraction, Switching, Liquid crystals, Polymers, Scattering, Diffraction gratings, Holography, Modulation, Optics manufacturing

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Proceedings Article | 20 April 1998 Paper

Holographic PDLCs for optical beam modulation, deflection, and dynamic filter applications

Lalgudi Natarajan, Richard Sutherland, Timothy Bunning, Vincent Tondiglia

Proceedings Volume 3292, (1998) https://doi.org/10.1117/12.305507

KEYWORDS: Liquid crystals, Holograms, Holography, Switching, Modulation, Polymers, Diffraction, Phased array optics, Diffraction gratings, Electro optics

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Proceedings Article | 30 October 1997 Paper

Electrically switchable holograms containing novel PDLC structures

Lalgudi Natarajan, Richard Sutherland, Vincent Tondiglia, Timothy Bunning, R. Neal

Proceedings Volume 3143, (1997) https://doi.org/10.1117/12.290764

KEYWORDS: Switching, Holograms, Liquid crystals, Glasses, Optical interconnects, Holography, Scanning electron microscopy, Polymers, Diffraction gratings, Electro optics

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Proceedings Article | 10 October 1997 Paper

Photophysics and nonlinear optical behavior of a,w dithienyl polyenes

Lalgudi Natarajan, Richard Sutherland, Paul Fleitz, Laura Sowards, Charles Spangler

Proceedings Volume 3146, (1997) https://doi.org/10.1117/12.284166

KEYWORDS: Absorption, Luminescence, Quantum efficiency, Laser energy, Emission spectroscopy, Optical limiting, Bipolarons, Pulsed laser operation, Wave plates, Attenuators

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Proceedings Article | 15 May 1997 Paper

Relation of electro-optical characteristics to materials properties and morphology in polymer-dispersed liquid crystal holographic gratings

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, Bob Epling, Donna Brandelik

Proceedings Volume 3010, (1997) https://doi.org/10.1117/12.274412

KEYWORDS: Scattering, Light scattering, Switching, Liquid crystals, Diffraction, Rayleigh scattering, Polymers, Particles, Holography, Electro optic polymers

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Proceedings Article | 7 May 1996 Paper

Switchable-focus lenses in holographic polymer-dispersed liquid crystal

Lawrence Domash, Tony Chen, Badri Gomatam, Conrad Gozewski, Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, W. Wade Adams

Proceedings Volume 2689, (1996) https://doi.org/10.1117/12.239623

KEYWORDS: Liquid crystals, Holography, Diffraction, Lenses, Polymers, Holograms, Switching, Modulation, Volume holography, Glasses

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Proceedings Article | 7 May 1996 Paper

Physics of photopolymer-liquid crystal composite holographic gratings

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, W. Wade Adams

Proceedings Volume 2689, (1996) https://doi.org/10.1117/12.239619

KEYWORDS: Diffraction gratings, Liquid crystals, Polymers, Diffraction, Holography, Switching, Birefringence, Electro optical modeling, Molecules, Electro optics

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Proceedings Article | 11 March 1996 Paper

Effects of eliminating the chain extender and varying the grating periodicity on the morphology of holographically written Bragg gratings

Timothy Bunning, Lalgudi Natarajan, Vincent Tondiglia, Richard Sutherland, Robert Haaga, W. Wade Adams

Proceedings Volume 2651, (1996) https://doi.org/10.1117/12.235361

KEYWORDS: Liquid crystals, Polymers, Diffusion, Fiber Bragg gratings, Photomicroscopy, Photopolymerization, Floods, Molecules, Polymerization, Composites

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Proceedings Article | 22 September 1995 Paper

Analysis of periodic polymer-dispersed liquid crystal structures for dynamic hologram applications

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, W. Wade Adams

Proceedings Volume 2532, (1995) https://doi.org/10.1117/12.221231

KEYWORDS: Diffraction, Switching, Diffraction gratings, Liquid crystals, Polymers, Electro optical modeling, Holograms, Holography, Modulation, Polarization

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Proceedings Article | 20 April 1995 Paper

Switchable holograms in new photopolymer-liquid crystal composite materials

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, W. Wade Adams

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207464

KEYWORDS: Diffraction, Switching, Polymers, Holograms, Liquid crystals, Scanning electron microscopy, Electro optics, Electro optical modeling, Diffraction gratings, Holography

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Proceedings Article | 17 June 1994 Paper

Development of photopolymer/liquid crystal composite materials for dynamic hologram applications

Richard Sutherland, Lalgudi Natarajan, Vincent Tondiglia, Timothy Bunning, W. Wade Adams

Proceedings Volume 2152, (1994) https://doi.org/10.1117/12.178085

KEYWORDS: Diffraction, Liquid crystals, Diffraction gratings, Polymers, Holography, Switching, Holograms, Crystals, Argon ion lasers, Ion lasers

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Proceedings Article | 27 April 1993 Paper

Optical limiting in solutions of dithienyl polyenes

Lalgudi Natarajan, Richard Sutherland, Mark Schmitt, Mark Brant, Daniel McLean, Paul Fleitz, Timothy Bunning, Robert Crane

Proceedings Volume 1853, (1993) https://doi.org/10.1117/12.144051

KEYWORDS: Absorption, Optical limiting, Optoelectronics, Transmittance, Nonlinear dynamics, Laser damage threshold, Pulsed laser operation, Laser energy, Chlorine, Organic materials

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Proceedings Article | 27 April 1993 Paper

Second harmonic generation in corona-poled polypeptides

Thomas Cooper, Morley Stone, Keith Obermeier, Robert Crane, Bob Epling, Zbigniew Tokarski, Lalgudi Natarajan

Proceedings Volume 1853, (1993) https://doi.org/10.1117/12.144059

KEYWORDS: Second-harmonic generation, Chromophores, Glasses, Temperature metrology, Thin films, Ultraviolet radiation, Harmonic generation, Nonlinear optical materials, Surface plasmons, Indium

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Showing 5 of 38 publications

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