Self-excitation of space charge waves

Sergei Lyuksyutov; Preben Buchhave; Mikhail Vasnetsov

doi:10.1103/PhysRevLett.79.67

Self-excitation of space charge waves

Sergei Lyuksyutov, Preben Buchhave, Mikhail Vasnetsov

Department of Physics

Technical University of Denmark

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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 language	English
Journal	Physical Review Letters
Volume	79
Issue number	1
Pages (from-to)	67-70
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.79.67
Publication status	Published - 1997

Bibliographical note

Copyright (1997) by the American Physical Society.

Keywords

PHOTOREFRACTIVE BI12SIO20 CRYSTALS
PIEZOELECTRICITY

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title = "Self-excitation of space charge waves",

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.",

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AB - 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.

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KW - PIEZOELECTRICITY

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Self-excitation of space charge waves

Abstract

Bibliographical note

Keywords

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