Reaching the superscattering regime with BIC physics

Adrià Canós Valero; Hadi K. Shamkhi; Anton S. Kupriianov; Vladimir R. Tuz; Vjaceslavs Bobrovs; Yuri S. Kivshar; Alexander S. Shalin

doi:10.1088/1742-6596/2172/1/012003

Reaching the superscattering regime with BIC physics

Adrià Canós Valero^*, Hadi K. Shamkhi, Anton S. Kupriianov, Vladimir R. Tuz, Vjaceslavs Bobrovs, Yuri S. Kivshar, Alexander S. Shalin

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

We uncover a novel mechanism of superscattering from subwavelength resonators linked to the physics of bound states in the continuum (BICs). Enhanced scattering occurs due to constructive interference within the Friedrich-Wintgen mechanism of interfering resonances. Through this process, the scattering cross section of a single resonance can exceed the currently established limit. We develop a general non-Hermitian model to describe interfering resonances of quasi-normal modes, and study subwavelength dielectric nonspherical resonators exhibiting avoided crossing resonances and quasi-BIC states. Our results reveal novel physics of non-Hermitian systems suggesting important applications for metadevices.

Original language	English
Article number	012003
Journal	Journal of Physics: Conference Series
Volume	2172
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/2172/1/012003
Publication status	Published - 9 Mar 2022
Event	4th International Smart NanoMaterials Conference 2021: Advances, Innovation and Applications, SNAIA 2021 - Paris, Virtual, France Duration: 7 Dec 2021 → 10 Dec 2021

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title = "Reaching the superscattering regime with BIC physics",

abstract = "We uncover a novel mechanism of superscattering from subwavelength resonators linked to the physics of bound states in the continuum (BICs). Enhanced scattering occurs due to constructive interference within the Friedrich-Wintgen mechanism of interfering resonances. Through this process, the scattering cross section of a single resonance can exceed the currently established limit. We develop a general non-Hermitian model to describe interfering resonances of quasi-normal modes, and study subwavelength dielectric nonspherical resonators exhibiting avoided crossing resonances and quasi-BIC states. Our results reveal novel physics of non-Hermitian systems suggesting important applications for metadevices.",

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T1 - Reaching the superscattering regime with BIC physics

AU - Canós Valero, Adrià

AU - Shamkhi, Hadi K.

AU - Kupriianov, Anton S.

AU - Tuz, Vladimir R.

AU - Bobrovs, Vjaceslavs

AU - Kivshar, Yuri S.

AU - Shalin, Alexander S.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2022/3/9

Y1 - 2022/3/9

N2 - We uncover a novel mechanism of superscattering from subwavelength resonators linked to the physics of bound states in the continuum (BICs). Enhanced scattering occurs due to constructive interference within the Friedrich-Wintgen mechanism of interfering resonances. Through this process, the scattering cross section of a single resonance can exceed the currently established limit. We develop a general non-Hermitian model to describe interfering resonances of quasi-normal modes, and study subwavelength dielectric nonspherical resonators exhibiting avoided crossing resonances and quasi-BIC states. Our results reveal novel physics of non-Hermitian systems suggesting important applications for metadevices.

AB - We uncover a novel mechanism of superscattering from subwavelength resonators linked to the physics of bound states in the continuum (BICs). Enhanced scattering occurs due to constructive interference within the Friedrich-Wintgen mechanism of interfering resonances. Through this process, the scattering cross section of a single resonance can exceed the currently established limit. We develop a general non-Hermitian model to describe interfering resonances of quasi-normal modes, and study subwavelength dielectric nonspherical resonators exhibiting avoided crossing resonances and quasi-BIC states. Our results reveal novel physics of non-Hermitian systems suggesting important applications for metadevices.

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U2 - 10.1088/1742-6596/2172/1/012003

DO - 10.1088/1742-6596/2172/1/012003

M3 - Conference article

AN - SCOPUS:85127269488

SN - 1742-6588

VL - 2172

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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M1 - 012003

T2 - 4th International Smart NanoMaterials Conference 2021: Advances, Innovation and Applications, SNAIA 2021

Y2 - 7 December 2021 through 10 December 2021

ER -

Reaching the superscattering regime with BIC physics

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