A novel method of global optimisation for wavefront shaping based on the differential evolution algorithm

被引:16
作者
Hua, Yingzi [1 ]
Sui, Xiubao [1 ]
Zhou, Shenghang [1 ]
Chen, Qian [1 ]
Gu, Guohua [1 ]
Bai, Hongyang [2 ]
Li, Wei [3 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Elect Engn & Optoelect Technol, Nanjing 210094, Peoples R China
[2] Nanjing Univ Sci & Technol, Sch Energy & Power, Nanjing 210094, Peoples R China
[3] Peoples Liberat Army China Unit 96037, Baoji 721000, Peoples R China
基金
中国国家自然科学基金;
关键词
Scattering; Focusing; Wavefront shaping; Differential evolution algorithm; FOCUSING LIGHT; ENSEMBLE; MEDIA; TIME;
D O I
10.1016/j.optcom.2020.126541
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
This paper proposes a novel wavefront-shaping-based focusing method, by introducing the differential evolution algorithm (DEA), thereby realising a faster convergence rate and improved enhancement compared to rival algorithms. Via simulations, we show that our proposed DEA-based approach delivers the best focusing performance irrespective of the influence of noise. Experimental results demonstrate that the DEA boosts the enhancement for an equivalent number of measurements compared with conventional optimisation methods. Furthermore, we reveal the influence of certain DEA parameters, leading to the emergence of many modified DEAs that perform impressively. The proposed DEA-based method simplifies the computational complexity and implementation process of wavefront shaping, offering useful insights for the future study of optimisation algorithms for wavefront shaping, as well as potential for practical applications, such as deep tissue focusing.
引用
收藏
页数:7
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