Superpixel-based multi-point intensity customizable light focusing for reflective iterative optimization wavefront shaping

作     者：Zhao, Yang Tang, Zhaoyang Xiang, Chengchao Ding, Yingchun 

作者机构：Beijing Univ Chem Technol Coll Math & Phys Beijing 100029 Peoples R China 

出 版 物：《OPTIK》 (光学)

年 卷 期：2021年第242卷

页      面：167319-167319页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China, NSFC, (21627813) Natural Science Foundation of Beijing Municipality, (7182091) 

主　　题：Superpixel method Nondominated Sorting Genetic Algorithm Wavefront shaping Multi-point controllable Customizable intensity 

摘      要：We propose a new algorithm, which is the combination of the superpixel method and Nondominated Sorting Genetic Algorithm, for multi-point light focusing of reflective iterative optimization wavefront shaping. Our algorithm shows a strong ability to control light, which is embodied in the following aspects: (1) Compared with other algorithms, the enhancement factor of multiple focal points is very high;(2) The uniformity of the intensity of multiple focal points is controllable;(3) Especially important is that the intensity of each of the multiple focal points is customizable. In the experiment, when 10 points are focused, the enhancement factor is up to 222.1, and the relative standard deviation is 5.99%. In terms of customizable intensity focusing, we set the ratio of focus intensity of two parts as 1:2 of 10-point, and the experimental result is 1:2.02, showing its powerful optical control capability in customizable intensity focusing. Our method has potential application value in the field of optogenetics and light capture.