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

被引：0
作者：
Lipeng Wan
Ziyang Chen
Huiling Huang
Jixiong Pu
机构：
[1] Huaqiao University,Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering
来源：
Applied Physics B | 2016年 / 122卷
关键词：
Single Spot; Spatial Light Modulator; Intensity Enhancement; Input Beam; Turbid Medium;
D O I：
暂无
中图分类号：
学科分类号：
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.
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