Observations of diffraction and self diffraction effects during two wave mixing in a nematic liquid crystal

David J. Webb, S.J. Elston, L. Solymar

Research output: Contribution to journalArticle

Abstract

We report observations of the diffraction pattern resulting when a nematic liquid crystal is illuminated with two equal power, high intensity beams of light from an Ar+ laser. The time evolution of the pattern is followed from the initial production of higher diffraction orders to a final striking display arising as a result of the self-diffraction of the two incident beams. The experimental results are described with good approximation by a model assuming a phase distribution at the output plane of the liquid crystal in the form of the sum of a gaussian and a sinusoid.
Original languageEnglish
Pages (from-to)283-288
Number of pages6
JournalOptics Communications
Volume89
Issue number2/4
DOIs
Publication statusPublished - 1 May 1992

Keywords

  • diffraction pattern
  • nematic liquid crystal
  • high intensity beams
  • Ar+ laser
  • time evolution

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