In this paper, we present the first observation, to our knowledge, of orientational photorefractive [OPR] effects in nematic liquid crystal film. The effect is attributed to molecular axis reorientation caused by the combination of an applied dc field and the dc space charge field induced by the impinging optical field. The refractive index change is a Kerr-like phenomena, and is quadratically defendant on the electric field strength present, unlike the usual [linear] photorefractive effect. To generate such orientational photorefractive effect in aligned nematic liquid crystal films, the applied dc field strengths are on the order of 100 V/cm.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Nonlinear photorefractive effects in liquid crystals


    Contributors:
    Khoo, I.C. (author) / Li, H. (author) / Liang, Y. (author)

    Published in:

    Proceedings of LEOS'94 ; 2 ; 316-317 vol.2


    Publication date :

    1994-01-01


    Size :

    131040 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Nonlinear Photorefractive Effects in Liquid Crystals

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1994


    Photorefractive effect in nematic liquid crystals doped with nonlinear optical chromophores

    Suho Jung, / Junho Mun, / Choon Sup Yoon, et al. | IEEE | 2001


    Nonlinear photovoltaic effect in Sillenite photorefractive crystals

    de Oliveira, Ivan / Capovilla, Danilo Augusto / Moura, André L. et al. | British Library Online Contents | 2017


    Nonlinear photovoltaic effect in Sillenite photorefractive crystals

    de Oliveira, Ivan / Capovilla, Danilo Augusto / Moura, André L. et al. | British Library Online Contents | 2017