Thermally controlled bound states in the continuum in Si3N4 photonic crystals

Pavel D. Terekhov; Michael Povolotskyi; Zhaxylyk Kudyshev; Samuel Peana; Shaimaa Azzam; Alexander Shalin; Alina Karabchevsky; Alexander Kildishev; Vladimir Shalaev; Alexandra Boltasseva

doi:10.1117/12.2568229

20 August 2020 Thermally controlled bound states in the continuum in Si₃N₄ photonic crystals

Pavel D. Terekhov, Michael Povolotskyi, Zhaxylyk Kudyshev, Samuel Peana, Shaimaa Azzam, Alexander Shalin, Alina Karabchevsky, Alexander Kildishev, Vladimir Shalaev, Alexandra Boltasseva

Author Affiliations +

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 1146015 (2020) https://doi.org/10.1117/12.2568229
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

Bound states in the continuum (BIC) attracted great attention in the photonics community. The existence of such states has led to numerous applications, including optical sensors and filters. Here we report on the approach to externally tune a magnitude and spectral position of high-Q resonances, associated with not symmetry-protected BIC state in silicon nitride (Si3N4) photonic crystals. We show that BIC properties can be controlled by the external thermal impact. These results can be used to construct compact and thermally stable optical sensors immune to harsh environmental conditions.

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Pavel D. Terekhov, Michael Povolotskyi, Zhaxylyk Kudyshev, Samuel Peana, Shaimaa Azzam, Alexander Shalin, Alina Karabchevsky, Alexander Kildishev, Vladimir Shalaev, and Alexandra Boltasseva "Thermally controlled bound states in the continuum in Si₃N₄ photonic crystals", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 1146015 (20 August 2020); https://doi.org/10.1117/12.2568229

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