Light sources generating self-focusing beams of variable focal length

被引：39
作者：
Mei, Zhangrong [1 ]
机构：
[1] Huzhou Teachers Coll, Dept Phys, Huzhou 313000, Peoples R China
来源：
OPTICS LETTERS | 2014年 / 39卷 / 02期
基金：
中国国家自然科学基金;
关键词：
NON-KOLMOGOROV TURBULENCE; COHERENT BEAMS; PROPAGATION;
D O I：
10.1364/OL.39.000347
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A class of partially coherent beams with a nonuniformly cosine-Gaussian (NUCG) correlated function is introduced. The evolution behavior of scalar beams produced by these families of sources in free space and isotropic random media are investigated. It is shown that such light fields with NUCG correlated function propagating in free space and turbulent atmosphere have self-focusing effects and laterally shifted intensity maxima. The new source employs cosine function for modeling of the source degree of coherence, which can adjust the self-focusing focal length, the shift of intensity center, and the intensity profile. (C) 2014 Optical Society of America
引用
收藏
页码：347 / 350
页数：4
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