Excitation of higher harmonic gratings in AC-field biased photorefractive crystals

Henrik C. Pedersen, Per M. Johansen, E.V. Podivilov, David J. Webb

Research output: Contribution to journalArticle

Abstract

We analyze the nonlinear excitation of holographic gratings in a photorefractive crystal being subject to an alternating electric field and a stationary light interference pattern. The influence of the higher harmonics on the fundamental grating is illustrated for the case where a crystal of Bi12SiO20 is the recording medium. We analyze both the steady state and the transient consequences of the higher harmonic excitation.
Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalOptics Communications
Volume154
Issue number1/3
DOIs
Publication statusPublished - 15 Aug 1998

Keywords

  • nonlinear excitation
  • holographic gratings
  • photorefractive crystal
  • electric field
  • light interference
  • harmonics
  • grating
  • Bi12SiO20
  • recording medium
  • higher harmonic excitation

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