Focusing light into desired patterns through turbid media by feedback-based wavefront shaping

被引：33

作者：

Wan, Lipeng ^{[1
]}

Chen, Ziyang ^{[1
]}

Huang, Huiling ^{[1
]}

Pu, Jixiong ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2016年 / 122卷 / 07期

关键词：

SCATTERED-LIGHT; LAYERS;

D O I：

10.1007/s00340-016-6466-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate that the focusing of light into desired patterns through turbid media can be realized using feedback-based wavefront shaping. Three desired focused patterns-a triangle, a circle, and a rectangle-are used as examples to study this ability. During the process of modulating scattered light, the Pearson's correlation coefficient is introduced as a feedback signal. It is found that the speckle field formed by the turbid media gradually transforms into the desired pattern through a process of modulation of the input beam wave front. The proposed approach has potential applications in biomedical treatment and laser material processing.

引用

页数：7

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