Numerical investigation of the effects of smoothing by spectral dispersion on stimulated rotational Raman scattering

被引：15
|
作者：
Fan, X. M. [1 ]
Lu, Z. W. [1 ]
Lin, D. Y. [1 ]
Yang, F. [1 ]
Liu, Y. [1 ]
Dong, Y. K. [1 ]
Zhu, C. Y. [1 ]
Hasi, W. L. J. [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150080, Peoples R China
来源：
LASER AND PARTICLE BEAMS | 2013年 / 31卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Color (frequency) cycle; Fluence modulation degree; Phase modulation; Smoothing by spectral dispersion; Stimulated rotational Raman scattering; LASER; UNIFORMITY; AIR; N-2;
D O I：
10.1017/S026303461200105X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of smoothing by spectral dispersion (SSD) on stimulated rotational Raman scattering (SRRS) in air has been investigated both numerically and theoretically. The suppression effect of SSD on SRRS process is verified and it is demonstrated and proposed that the suppression effect is attributed to two aspects: the decreasing of the laser fluence modulation degree and the reducing of Stokes gain coefficient caused by the temporal and spatial variation of the phase of the incident laser pulse. The simulation results show that the SRRS threshold distance can be lengthened by choosing appropriate SSD parameters.
引用
收藏
页码：171 / 175
页数：5
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