Liquid crystals doped with dyes or with added photoconducting polymer layers show high two-beam coupling gain. This paper has demonstrated that efficient two-beam coupling can be observed with polyvinyl carbazole (PVK) doped with a photosensitiser, named fullerene C/sub 60/. Two-beam coupling gain and efficiency of the material structure are measured. While application of an electric field tends to affect the orientation of the bulk of the liquid crystal, the photosensitive layer, covering the surface of the cell, reacts quite strongly with the incident light. PVK:C/sub 60/ prove their suitability for coherent light amplification and patterning.


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    Title :

    Photorefractive gratings in liquid crystals with polymer doped C/sub 60/ layers


    Contributors:
    Kaczmarek, M. (author) / Eason, R.W. (author) / Dyadyusha, A. (author)


    Publication date :

    2003-01-01


    Size :

    81862 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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