Generation of rotating multi-vortex laser beams

被引:1
作者
Krasnoshchekov, Ye A. [1 ]
Yaparov, V. V. [1 ]
Taranenko, V. B. [1 ]
机构
[1] NAS Ukraine, Inst Appl Opt, Int Ctr, Kiev, Ukraine
关键词
optical vortices; single frequency laser; laser dynamics; spatio-temporal structures; photorefractive oscillators; RING OSCILLATOR; DYNAMICS; VORTICES; PATTERNS; SOLITONS;
D O I
10.1088/2040-8986/abc317
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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.
引用
收藏
页数:5
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