Metasurface optics for full-color computational imaging

Science Advances
Shane ColburnArka Majumdar

Abstract

Conventional imaging systems comprise large and expensive optical components that successively mitigate aberrations. Metasurface optics offers a route to miniaturize imaging systems by replacing bulky components with flat and compact implementations. The diffractive nature of these devices, however, induces severe chromatic aberrations, and current multiwavelength and narrowband achromatic metasurfaces cannot support full visible spectrum imaging (400 to 700 nm). We combine principles of both computational imaging and metasurface optics to build a system with a single metalens of numerical aperture ~0.45, which generates in-focus images under white light illumination. Our metalens exhibits a spectrally invariant point spread function that enables computational reconstruction of captured images with a single digital filter. This work connects computational imaging and metasurface optics and demonstrates the capabilities of combining these disciplines by simultaneously reducing aberrations and downsizing imaging systems using simpler optics.

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Citations

Jan 22, 2019·Nature Communications·Wei Ting ChenFederico Capasso
Oct 18, 2019·Science Advances·Alan ZhanArka Majumdar
Apr 1, 2020·Optics Express·Masashi MiyataToshikazu Hashimoto
Nov 2, 2019·Light, Science & Applications·Zhi-Bin FanJian-Wen Dong
Aug 6, 2020·Nature Communications·F BalliJ T Hastings
Jun 13, 2020·Light, Science & Applications·Andrew McClungAmir Arbabi
Dec 22, 2020·IScience·Seong-Won MoonJunsuk Rho
Oct 30, 2020·Optics Express·Tahmid H Talukdar, Judson D Ryckman
Mar 2, 2021·Advanced Science·Rajib Ahmed, Haider Butt
May 28, 2021·Light, Science & Applications·Andrew McClungAmir Arbabi
Jun 2, 2021·ACS Photonics·Daniel FreseThomas Zentgraf
Jun 24, 2021·Nano Letters·Cheng-Wei QiuYuri Kivshar
Jul 18, 2018·Nano Letters·Ehsan ArbabiAndrei Faraon
Oct 9, 2018·Nano Letters·Chang-Hua LiuArka Majumdar
Sep 19, 2020·Nano Letters·Mikhail Y ShalaginovTian Gu
Nov 3, 2021·Nanoscale·Ride WangChunhai Fan
Mar 4, 2019··Elyas BayatiArka Majumdar
Sep 29, 2020··Arka Majumdar, Arka Majumdar
Mar 4, 2019··Shane ColburnArka Majumdar
Sep 15, 2020··Shane ColburnRaphael Pestourie

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Methods Mentioned

BETA
electron-beam lithography
electron beam lithography

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