Technical Physics Letters

, Volume 33, Issue 3, pp 255–257 | Cite as

Optically addressed As50Se50-liquid crystal structure highly sensitive to He-Ne laser radiation

  • L. P. Amosova
  • A. N. Chaika


An optically addressed structure of the As x Se1-x -liquid crystal (LC) type, with the photoconductor composition deviating from stoichiometry toward excess arsenic, has been tested using holographic techniques. It is established that the As50Se50-LC structure (with maximum possible arsenic content in the photoconductor) exhibits record high sensitivity (2.2 × 10−7 W/cm2) at a He-Ne laser radiation wavelength. Based on this structure, it is possible to implement nonlinear optical data-processing algorithms employing the entire transmission characteristic including the inversion region. The maximum diffraction efficiency achieved with the As50Se50-LC structure amounts to 36.5%.

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Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • L. P. Amosova
    • 1
  • A. N. Chaika
    • 1
  1. 1.St. Petersburg State University of Information Technology, Mechanics, and OpticsSt. PetersburgRussia

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