Light Focusing through Scattering Media by Particle Swarm Optimization

被引：31

作者：

Huang Hui-Ling ^{[1
]}

Chen Zi-Yang ^{[1
]}

Sun Cun-Zhi ^{[1
]}

Liu Ji-Lin ^{[1
]}

Pu Ji-Xiong ^{[1
]}

机构：

[1] Huaqiao Univ, Coll Informat Sci & Engn, Fujian Prov Key Lab Light Propagat & Transformat, Xiamen 361021, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2015年 / 32卷 / 10期

基金：

中国国家自然科学基金;

关键词：

TIME;

D O I：

10.1088/0256-307X/32/10/104202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate light focusing through scattering media by introducing particle swarm optimization for modulating the phase wavefront. Light refocusing is simulated numerically based on the angular spectrum method and the circular Gaussian distribution model of the scattering media. Experimentally, a spatial light modulator is used to control the phase of incident light, so as to make the scattered light converge to a focus. The influence of divided segments of input light and the effect of the number of iterations on light intensity enhancement are investigated. Simulation results are found to be in good agreement with the theoretical analysis for light refocusing.

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页数：4

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