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arXiv · 2311.13452

From local to nonlocal high-Q plasmonic metasurfaces

Yao Liang·Din Ping Tsai·Yuri Kivshar
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Abstract

The physics of bound states in the continuum (BICs) allows to design and demonstrate optical resonant structures with large values of the quality factor ($Q$-factor) by employing dielectric structures with low losses. However, BIC is a general wave phenomenon that should be observed in many systems, including the metal-dielectric structures supporting plasmons where the resonances are hindered by losses. Here we develop a comprehensive strategy to achieve high-$Q$ resonances in plasmonic metasurfaces by effectively tailoring the resonant modes from local and nonlocal regimes.

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Yao Liang, Din Ping Tsai, Yuri Kivshar. 2023-11-22. From local to nonlocal high-Q plasmonic metasurfaces. https://arxiv.org/abs/2311.13452

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