Radial and height-driven bound states in the continuum

Andreas Tittl

doi:10.1117/12.2647895

17 March 2023 Radial and height-driven bound states in the continuum

Andreas Tittl

Proceedings Volume PC12432, High Contrast Metastructures XII; PC1243205 (2023) https://doi.org/10.1117/12.2647895
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Photonic bound states in the continuum (BICs) have enabled far-reaching nanophotonic applications in high-harmonic generation, biospectroscopy, and lasing, among others. BIC-based metasurfaces with tailored structural asymmetry have empowered these advances, but still face constraints related to large metasurface footprints, the need for complex polarization states, or fabrication limits requiring constant resonator heights throughout the structure. In this talk, I will present two directions for obtaining additional photonic functionalities in such systems: the arrangement of BIC-based unit cells in semi-infinite radial configurations for polarization invariance and reduced footprints as well as height-driven BICs leveraging resonators with different thicknesses as an additional degree of freedom for resonance engineering.

Conference Presentation

Citation Download Citation

Andreas Tittl "Radial and height-driven bound states in the continuum", Proc. SPIE PC12432, High Contrast Metastructures XII, PC1243205 (17 March 2023); https://doi.org/10.1117/12.2647895

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