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

页码：169 / 178

页数：10

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