首页|Meta Shack-Hartmann wavefront sensor with large sampling density and large angular field of view:phase imaging of complex objects

Meta Shack-Hartmann wavefront sensor with large sampling density and large angular field of view:phase imaging of complex objects

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
Shack-Hartmann wavefront sensors measure the local slopes of an incoming wavefront based on the displacement of focal spots created by a lenslet array,serving as key components for adaptive optics for astronomical and biomedical imaging.Traditionally,the challenges in increasing the density and the curvature of the lenslet have limited the use of such wavefront sensors in characterizing slowly varying wavefront structures.Here,we develop a metasurface-enhanced Shack-Hartmann wavefront sensor(meta SHWFS)to break this limit,considering the interplay between the lenslet parameters and the performance of SHWFS.We experimentally validate the meta SHWFS with a sampling density of 5963 per mm2 and a maximum acceptance angle of 8° which outperforms the traditional SFWFS by an order of magnitude.Furthermore,to the best of our knowledge,we demonstrate the first use of a wavefront sensing scheme in single-shot phase imaging of highly complex patterns,including biological tissue patterns.The proposed approach opens up new opportunities in incorporating exceptional light manipulation capabilities of the metasurface platform in complex wavefront characterization.

Gi-Hyun Go、Dong-gu Lee、Jaeyeon Oh、Gookho Song、Doeon Lee、Mooseok Jang

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Department of Bio and Brain Engineering,Korea Advanced Institute of Science and Technology(KAIST),Daejeon,Republic of Korea

Samsung Research Funding and Incubation Center of Samsung Electronics grantSamsung Electronics Co.,LtdNational Research Foundation of Korea grant funded by the Korean governmentNational Research Foundation of Korea grant funded by the Korean governmentNational Research Foundation of Korea grant funded by the Korean governmentNational Research Foundation of Korea grant funded by the Korean governmentNational Research Foundation of Korea grant funded by the Korean government

SRFC-IT2002-03IO220908-02403-01NRF-2021R1A5A1032937NRF-2021R1C1C1011307RS-2023-00275923RS-2023-00251628RS-2024-00397673

2024

10.1038/s41377-024-01528-9

光:科学与应用(英文版)
中国科学院长春光学精密机械与物理研究所

光:科学与应用(英文版)

CSTPCD
ISSN：2095-5545
年,卷(期)：2024.13(9)