Dataset Information

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

ABSTRACT: 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.

SUBMITTER: Go GH

PROVIDER: S-EPMC11319597 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature

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

Go Gi-Hyun GH Lee Dong-Gu DG Oh Jaeyeon J Song Gookho G Lee Doeon D Jang Mooseok M

Light, science & applications 20240812 1

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 senso ...[more]

PMID: 39134518

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Dataset Information

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

Publications

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

Similar Datasets

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