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Inverse design enables large-scale high-performance meta-optics reshaping virtual reality

Engineering and Technology

Inverse design enables large-scale high-performance meta-optics reshaping virtual reality

Z. Li, R. Pestourie, et al.

Explore the future of virtual reality with a groundbreaking inverse-design framework for large-scale complex meta-optics, developed by Zhaoyi Li, Raphaël Pestourie, Joon-Suh Park, Yao-Wei Huang, Steven G. Johnson, and Federico Capasso. This innovative approach overcomes design challenges, resulting in aberration-corrected metalenses with impressive capabilities for polychromatic focusing.

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~3 min • Beginner • English
Abstract
Meta-optics has advanced rapidly, but forward (phase-matching) design struggles as device complexity and size increase. The authors introduce a general inverse-design framework for aperiodic, large-scale three-dimensional meta-optics (up to ~20k × 20k × 22 parameters), combining a fast approximate forward solver (local-field/Green’s-function convolution) with adjoint-based gradient optimization and a surrogate model that embeds fabrication constraints. They experimentally demonstrate visible-wavelength, aberration-corrected metalenses with high numerical aperture, polychromatic (RGB and six-wavelength) focusing, and diameters up to 1 cm. They further showcase potential for virtual reality by integrating a meta-eyepiece with a laser back-illuminated micro-LCD.
Publisher
Nature Communications
Published On
May 03, 2022
Authors
Zhaoyi Li, Raphaël Pestourie, Joon-Suh Park, Yao-Wei Huang, Steven G. Johnson, Federico Capasso
DOI
https://doi.org/10.1038/s41467-022-29973-3
Tags
meta-optics
inverse design
large-scale fabrication
aberration correction
virtual reality
polychromatic focusing
three-dimensional

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