Dynamic regimes of three-wave interaction of ultrasonic beams in TeO2

被引：3
|
作者：
Ilchenko, L
Grimalsky, V [1 ]
Koshevaya, S
Burlak, G
机构：
[1] Natl Inst Astrophys Opt & Elect, Puebla 72000, Pue, Mexico
[2] Kiev Natl Univ, Radiophys Fac, UA-02137 Kiev, Ukraine
[3] Autunomous Univ Morelos, Cuernavaca 62210, Morelos, Mexico
来源：
PHYSICS LETTERS A | 2002年 / 303卷 / 2-3期
关键词：
three-wave interaction; ultrasonic beams; diffraction; dynamic regimes;
D O I：
10.1016/S0375-9601(02)01115-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Results of experimental and theoretical investigations of dynamic phenomena, which occur under the three-wave resonant interaction of ultrasonic beams in a crystal TeO2, are presented. The interacting waves are fast longitudinal ultrasonic wave (pump, its frequency is 100-1000 MHz) and two slow co- and counter-propagating transverse ones. When the input intensity of the pump wave exceeds similar to5 times the threshold of parametric generation, a complex spatial-temporal dynamics is observed, both regular and chaotic. The resonant three-wave interaction has been simulated by means of solving coupled equations for slowly varying amplitudes of interacting waves, when a transverse inhomogeneity has been taken into account. The spatial-temporal distributions of wave amplitudes within the crystal are complex in all directions and they qualitatively describe the experimental data. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：169 / 178
页数：10
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