Photorefractive liquid crystals

Authors

  • Dr. Gary P. Wiederrecht,

    Corresponding author
    1. Chemistry Division, Argonne National Laboratory, Argonne, IL 60439-4831 (USA)
    • Chemistry Division, Argonne National Laboratory, Argonne, IL 60439-4831 (USA)
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  • Dr. Beth A. Yoon,

    1. Department of Chemistry, Northwestern University Evanston, IL 60208-3113 (USA)
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  • Prof. Michael R. Wasielewski

    Corresponding author
    1. Chemistry Division, Argonne National Laboratory, Argonne, IL 60439-4831 (USA)
    • Department of Chemistry, Northwestern University Evanston, IL 60208-3113 (USA)
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  • We gratefully acknowledge support from the Office of Computational and Technological Programs, Division of Advanced Energy Projects, U. S. Department of Energy, under contract W-31-109-ENG-38.

Abstract

Photorefractive liquid crystals represent the newest class of photorefractive materials. The low electric fields required for reorienting liquid crystals, combined with their high birefringence, results in the observation of photorefractivity with very low optical intensities and low applied fields. Photoinducing efficient charge transport over macroscopic distances is the primary hurdle for producing the space-charge field required for photorefractivity.

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