Self-excitation of space charge waves

Sergei Lyuksyutov, Preben Buchhave, Mikhail Vasnetsov

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Abstract

We report a direct observation of space charge waves in photorefractive crystals with point group 23 (sillenites) based on their penetration into an area with uniform light illumination. It is shown experimentally that the quality factor of the waves increases substantially with respect to what current theory predicts [B. Sturman el al., Appl. Phys. A 55, 235 (1992)]. This results in the appearance of strong spontaneous beams caused by space charge wave self-excitation.
Original languageEnglish
JournalPhysical Review Letters
Volume79
Issue number1
Pages (from-to)67-70
ISSN0031-9007
DOIs
Publication statusPublished - 1997

Bibliographical note

Copyright (1997) by the American Physical Society.

Keywords

  • PHOTOREFRACTIVE BI12SIO20 CRYSTALS
  • PIEZOELECTRICITY

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