光学
涡流
物理
激光器
横截面
简并能级
旋转(数学)
菲涅耳数
旋涡
衍射
机械
梁(结构)
量子力学
结构工程
工程类
数学
几何学
作者
Ye Krasnoshchekov,V. V. Yaparov,V. B. Taranenko
出处
期刊:Journal of Optics
[IOP Publishing]
日期:2020-11-10
卷期号:22 (12): 125501-125501
被引量:1
标识
DOI:10.1088/2040-8986/abc317
摘要
Abstract We study transverse dynamics of the optical field, generated in a single-frequency laser of moderate Fresnel number. The existence of steadily rotating vortex clusters generated spontaneously in laser with degenerate in frequency cavity is demonstrated numerically and experimentally in laser-like two-wave-mixing photorefractive oscillator with plane-mirror cavity and controlled aperture. The observed rotational dynamics of two-, three- and four-vortex clusters is explained within the framework of the general nonlinear pattern forming model.
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