Tuning the quasi-bound states in the continuum resonance of an all-dielectric metasurface via gradual heating

Angela Barreda; Athira Kuppadakkath; Lilit Ghazaryan; Tobias Bucher; Kiril Koshelev; Thomas Pertsch; Adriana Szeghalmi; Duk Choi; Falk Eilenberger; Isabelle Staude

doi:10.1117/12.3014220

11 June 2024 Tuning the quasi-bound states in the continuum resonance of an all-dielectric metasurface via gradual heating

Angela Barreda, Athira Kuppadakkath, Lilit Ghazaryan, Tobias Bucher, Kiril Koshelev, Thomas Pertsch, Adriana Szeghalmi, Duk Choi, Falk Eilenberger, Isabelle Staude

Author Affiliations +

Proceedings Volume PC12990, Metamaterials XIV; PC1299016 (2024) https://doi.org/10.1117/12.3014220
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

The excitation of quasi-bound states in the continuum (quasi-BIC) in symmetry broken all dielectric metasurfaces have been vastly explored in the last years. The high Q-factor of quasi-BIC resonances make them attractive in sensing, electromagnetic induced transparency or non-linear optics. The resonance wavelength is fixed by the geometry of the metasurface, which is a constraint for applications, which require the tuning of the resonances to different spectral regions. In this work, we demonstrate the use of temperature as a means to fine-tune the quasi-BIC resonance in hydrogenated amorphous silicon (a-Si:H) metasurfaces.

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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Angela Barreda, Athira Kuppadakkath, Lilit Ghazaryan, Tobias Bucher, Kiril Koshelev, Thomas Pertsch, Adriana Szeghalmi, Duk Choi, Falk Eilenberger, and Isabelle Staude "Tuning the quasi-bound states in the continuum resonance of an all-dielectric metasurface via gradual heating", Proc. SPIE PC12990, Metamaterials XIV, PC1299016 (11 June 2024); https://doi.org/10.1117/12.3014220

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