Tunable guided resonance in twisted bilayer photonic crystal.
basic_science · Level V
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- Record sourced from PubMed, PMID 36449612.
- Also identified by DOI 10.1126/sciadv.add4339 and PMC identifier 9710865.
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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.