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Tunable guided resonance in twisted bilayer photonic crystal.

ABSTRACT: We experimentally demonstrate tunable guided resonance in twisted bilayer photonic crystals. Both the numerically and the experimentally obtained transmission spectra feature resonances with frequencies strongly dependent on the twist angle, as well as resonances with frequencies that are largely independent of the twist angle. These resonant features can be well understood with a simple analytic theory based on band folding. Our work illustrates the rich tunable resonance physics in twisted bilayer systems.

SUBMITTER: Lou B

PROVIDER: S-EPMC9710865 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Tunable guided resonance in twisted bilayer photonic crystal.

Lou Beicheng B Wang Benjamin B Rodríguez Jesse A JA Cappelli Mark M Fan Shanhui S

Science advances 20221130 48

We experimentally demonstrate tunable guided resonance in twisted bilayer photonic crystals. Both the numerically and the experimentally obtained transmission spectra feature resonances with frequencies strongly dependent on the twist angle, as well as resonances with frequencies that are largely independent of the twist angle. These resonant features can be well understood with a simple analytic theory based on band folding. Our work illustrates the rich tunable resonance physics in twisted bil ...[more]

PMID: 36449612

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