Bessel beam metalens array for single-shot, large-volume, and high-resolution 3D imaging

Junjie Hu; Weijian Yang

doi:10.1117/12.2610267

5 March 2022 Bessel beam metalens array for single-shot, large-volume, and high-resolution 3D imaging

Junjie Hu, Weijian Yang

Proceedings Volume PC12011, High Contrast Metastructures XI; PC120110Q (2022) https://doi.org/10.1117/12.2610267
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We present a novel metalens array for single-shot, large-volume, and high-resolution 3D imaging. Each metalens unit behaves as a special axicon to produce a Bessel beam point spread function (PSF), but with a bounded angular field of view (FOV). The metalens array can resolve three-dimensional information as a light-field camera. The bounded angular FOV prevents excessive image crosstalk between lens units to suppress background. Compared with conventional light-field cameras, our imaging device uses a single layer of metalens array without any bulk lens; the Bessel beam PSF increases the depth range that can be imaged while maintaining high resolution.

Conference Presentation

Citation Download Citation

Junjie Hu and Weijian Yang "Bessel beam metalens array for single-shot, large-volume, and high-resolution 3D imaging", Proc. SPIE PC12011, High Contrast Metastructures XI, PC120110Q (5 March 2022); https://doi.org/10.1117/12.2610267

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