Multi-focus manipulation system based on separable natural evolution strategy aberration self-calibration

Linxian Liu; Jiahao Liu; Chunxu Ding; Jiamiao Yang; Jia Gao; Yuan Qu; Qiaozhi He; Rongjun Shao

doi:10.35848/1882-0786/ad2afe

Applied Physics Express (Jan 2024)

Multi-focus manipulation system based on separable natural evolution strategy aberration self-calibration

Linxian Liu,
Jiahao Liu,
Chunxu Ding,
Jiamiao Yang,
Jia Gao,
Yuan Qu,
Qiaozhi He,
Rongjun Shao

Affiliations

Linxian Liu: ORCiD; School of Automation and Software Engineering, Shanxi University , Taiyuan,030006, People’s Republic of China
Jiahao Liu: ORCiD; School of Automation and Software Engineering, Shanxi University , Taiyuan,030006, People’s Republic of China
Chunxu Ding: ORCiD; School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China
Jiamiao Yang: ORCiD; School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China; Institute of Marine Equipment, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China
Jia Gao: ORCiD; School of Automation and Software Engineering, Shanxi University , Taiyuan,030006, People’s Republic of China
Yuan Qu: ORCiD; School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China; Institute of Marine Equipment, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China
Qiaozhi He: ORCiD; Institute of Marine Equipment, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China
Rongjun Shao: ORCiD; School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University , Shanghai, 200240, People’s Republic of China

DOI: https://doi.org/10.35848/1882-0786/ad2afe
Journal volume & issue: Vol. 17, no. 3
p. 032001

Abstract

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Wavefront shaping using digital micromirror devices (DMDs) allows inertia-free focus manipulation with numerous modulation modes and high refresh rates. However, the aberration caused by the curvature of DMDs affects the focusing performance. Here, we propose an aberration self-calibration method based on separable natural evolution strategies. This method searches optimal Zernike coefficients of aberration globally and completes compensation using super-pixel encoding. Compared to the genetic algorithm method, we improve the speed by 62% and achieve better-focused spots. The method enables simultaneous scanning of 25 independent focal spots. This advancement supports wavefront-shaping applications in optical imaging, industrial inspection, and laser processing.

Published in Applied Physics Express

ISSN: 1882-0778 (Print); 1882-0786 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1882-0786

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