Nonlinear response of photorefractive lithium tantalate and niobate at acoustic frequencies

被引：2
|
作者：
Prudkovskii, PA
Skugarevskii, OV
Penin, AN
机构：
[1] M. V. Lomonosov Moscow State University
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 1997年 / 85卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
Spectroscopy; Lithium; State Physics; Field Theory; Elementary Particle;
D O I：
10.1134/1.558369
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An amplification of the intensity of pump oscillations is observed experimentally at frequencies from 100 Hz to 1 kHz during photoinduced light scattering and holographic-type parametric scattering in photorefractive lithium tantalate and niobate. Possible ways are analyzed for explaining the existence of a photorefractive response in these crystals over times of 10(-2)-10(-3) s, which are five orders of magnitude shorter than the Maxwell time. (C) 1997 American Institute of Physics.
引用
收藏
页码：812 / 817
页数：6
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