Inverse-designed nanophotonic devices based on design space reparameterization

You Zhou; Erez Gershnabel; Chenkai Mao; Mingkun Chen; Jonathan Fan

doi:10.1117/12.2652133

17 March 2023 Inverse-designed nanophotonic devices based on design space reparameterization

You Zhou, Erez Gershnabel, Chenkai Mao, Mingkun Chen, Jonathan Fan

Proceedings Volume PC12432, High Contrast Metastructures XII; PC124320B (2023) https://doi.org/10.1117/12.2652133
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Topology optimization has dramatically enhanced the design landscape of structures for realizing high-performance, freeform nanophotonic devices. However, unrestricted topology-optimized devices often possess complex geometries, making them difficult to fabricate in a reliable manner. Here, we impose hard geometric constraints by reparameterizing the design space. The design layouts are mathematically transformed from an unconstrained latent space to a physically realizable device composed of simple shapes. As a proof of concept, we apply the reparameterization technique to achieve high-efficiency large-angle wavefront transformation in periodic and aperiodic systems. We further expand the design framework to large-scale, multifunctional nanophotonic devices.

Conference Presentation

Citation Download Citation

You Zhou, Erez Gershnabel, Chenkai Mao, Mingkun Chen, and Jonathan Fan "Inverse-designed nanophotonic devices based on design space reparameterization", Proc. SPIE PC12432, High Contrast Metastructures XII, PC124320B (17 March 2023); https://doi.org/10.1117/12.2652133

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KEYWORDS

Nanophotonics

Optics manufacturing

Beam splitters

Manufacturing

Nanotechnology

Near field

Near field optics

Show All Keywords

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