Optimizing tunability of bound states in the continuum with graphene

Gregory Holdman; Victor W. Brar; Gabriel R. Jaffe; Juho Park; Min Seok Jang

doi:10.1117/12.2607835

1 April 2022 Optimizing tunability of bound states in the continuum with graphene

Gregory Holdman, Victor W. Brar, Gabriel R. Jaffe, Juho Park, Min Seok Jang

Proceedings Volume PC11997, Optical Components and Materials XIX; PC1199706 (2022) https://doi.org/10.1117/12.2607835
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Bound states in the continuum (BICs) in dielectric metasurfaces have gained significant interest for their narrow linewidths and potential applications to high-powered lasers, filters, and sensors. The resonant frequency of a BIC may be tuned by altering its dielectric environment either by changing the substrate or introducing a tunable material such as graphene. In this work, we use a gradient-descent based optimization approach to design 1D BIC metasurfaces with optical modes that exhibit extreme resonant frequency dependence on their dielectric environment. We then experimentally test our predictions by fabricating the structures, measuring their optical response, and comparing to our predictions.

Conference Presentation

Citation Download Citation

Gregory Holdman, Victor W. Brar, Gabriel R. Jaffe, Juho Park, and Min Seok Jang "Optimizing tunability of bound states in the continuum with graphene", Proc. SPIE PC11997, Optical Components and Materials XIX, PC1199706 (1 April 2022); https://doi.org/10.1117/12.2607835

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