Nonlinear compression of giant surface acoustic wave pulses

被引：11
|
作者：
Kolomenskii, AA [1 ]
Schuessler, HA [1 ]
机构：
[1] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
来源：
PHYSICS LETTERS A | 2001年 / 280卷 / 03期
基金：
美国国家科学基金会;
关键词：
nonlinear surface acoustic waves; nonlinear evolution equation; pulse compression; shock front; laser photoacoustics;
D O I：
10.1016/S0375-9601(00)00848-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The nonlinear propagation of very high-amplitude surface acoustic wave (SAW) pulses in polycrystalline aluminum and copper was studied. A nonlinear compression and an increase of the SAW pulse amplitude have been observed. SAW pulses were numerically simulated with a nonlinear evolution equation including local and nonlocal nonlinear terms. (C) 2001 Elsevier Science B.V. Ail rights reserved.
引用
收藏
页码：157 / 161
页数：5
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