One-dimensional modulation instability of wave packets in media with resonant dispersion

被引：4
|
作者：
Rybak, SA
Zozulya, OM
机构：
[1] N.N. Andreev Acoustic Institute, Moscow 117036
来源：
PHYSICA A | 1997年 / 241卷 / 1-2期
关键词：
waves; oscillators; instability; modulation;
D O I：
10.1016/S0378-4371(97)00071-X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Modulation instability of small-amplitude quasimonochromatic wave packets in media containing compact oscillators is analysed in the one-dimensional case. Conservative media with quadratic nonlinearity and linear nondamped oscillators are considered. Frequency range of unstable wave-packet propagation is found. It is shown that instability results from resonant long-wave-short-wave interaction.
引用
收藏
页码：128 / 132
页数：5
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