Propagation and transformation properties of rotating sinh-Gaussian beam in nonlinear media with spatial nonlocality

被引：0

作者：

Liu, Jia-Qi ^{[1
,2
]}

Wang, Hui ^{[1
,2
]}

Pang, Zhao-Guang ^{[1
,2
]}

Yang, Zhen-Jun ^{[1
,2
]}

机构：

[1] College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang,050024, China

[2] Hebei Province Semiconductor Photoelectric Application Technology Innovation Center, Shijiazhuang,050000, China

来源：

Optik | 2022年 / 250卷

基金：

中国国家自然科学基金;

关键词：

Gaussian distribution - Nonlinear systems - Mathematical transformations;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, by introducing a rotating coordinate system, the evolution and propagation of astigmatic sinh-Gaussian beam in nonlinear media with spatial nonlocality is investigated, and the transformation and propagation characteristics of astigmatic sinh-Gaussian beam in different transverse directions with different rotation angles are discussed. Some mathematical expressions of a rotating sinh-Gaussian beam are deduced, such as the propagation evolution, the beam width, the beam curvature, the critical power, etc. It is proved that the astigmatic sinh-Gaussian beam can keep the statistical width of the beam unchanged in any transverse direction during evolution, and the changes of beam width are diverse in two transverse directions. The influences of the rotation angle and the beam coefficients on the propagation characteristics are discussed and illustrated by numerical simulation. © 2021 Elsevier GmbH

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