Influence of higher-order terms of the approximate dispersion theory on the pulse envelope profile in a dispersive medium

被引：0
|
作者：
Zakharov N.S. [1 ]
Kholod S.V. [1 ]
机构：
[1] FSFE «12 CSRI» of the Ministry of Defense of the Russian Federation, Sergiev Posad
来源：
| 1600年 / Institution of Russian Academy of Sciences卷 / 41期
关键词：
Chirping; Dispersion theory; Fourier transforms; Pulse envelope; Ultrashort pulse;
D O I：
10.18287/2412-6179-2017-41-5-636-644
中图分类号：
学科分类号：
摘要：
Results of the numerical calculation of the envelope and frequency profile of a pulse propagating in a dispersive medium, exemplified by the propagation of a femtosecond pulse in the plasma, are presented. The explanation for the appearance of modulation in the odd orders of approximation of the theory of dispersion and for the extinction of modulation in the even orders is given. Taking into account the fourth-order term of the approximate dispersion theory is shown to be sufficient in the majority of cases when calculating the ultrashort pulse propagation. © 2017, Institution of Russian Academy of Sciences. All rights reserved.
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页码：636 / 644
页数：8
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