Efficient inverse design automation for metalens

Jan Bos; Evan Heller; Rob Scarmozzino; Mayank Bahl; Li-Ce Hu; Chenglin Xu

doi:10.1117/12.2677493

28 September 2023 Efficient inverse design automation for metalens

Jan Bos, Evan Heller, Rob Scarmozzino, Mayank Bahl, Li-Ce Hu, Chenglin Xu

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Proceedings Volume PC12664, Optical Modeling and Performance Predictions XIII; PC1266402 (2023) https://doi.org/10.1117/12.2677493
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

To meet the growing demand for design automation of metalens with inverse design capability, Synopsys has developed a powerful and user-friendly multi-domain design tool, MetaOptic Designer (MOD), that can handle lenses with subwavelength features. The optimization algorithm employs the well-known adjoint method, which can easily handle millions of design variables. The forward propagation is done by the efficient Fourier transform, also called angular spectrum method. The transfer function of each metalens is characterized by a parametric BSDF databases built with RCWA or FDTD. Application examples include achromatic metalens, large FOV metalens, reflective metalens, chiral hologram, and hybrid optical system.

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Jan Bos, Evan Heller, Rob Scarmozzino, Mayank Bahl, Li-Ce Hu, and Chenglin Xu "Efficient inverse design automation for metalens", Proc. SPIE PC12664, Optical Modeling and Performance Predictions XIII, PC1266402 (28 September 2023); https://doi.org/10.1117/12.2677493

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KEYWORDS

Design and modelling

Automation

Finite-difference time-domain method

Hybrid optics

Lens design

Lenses

Mathematical optimization

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