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Replication Data for: Lattice enhanced Fano resonances from bound states in the continuum metasurfaces

Replication Data for: Lattice enhanced Fano resonances from bound states in the continuum metasurfaces
Replication Data for: Lattice enhanced Fano resonances from bound states in the continuum metasurfaces
Fano resonances in metamaterials are known for their high quality (Q) factor and high sensitivity to external perturbations, which makes them attractive for sensors, lasers, non-linear and slow light devices. However, Fano resonances with higher Q factors obtained through structural optimization of individual resonators are accompanied by lower resonance intensity, thereby limiting the overall figure of merit (FoM) of the resonance. This article reports a strategy for simultaneously enhancing the Q factor and FoM of Fano resonances in terahertz metamaterials. Coupling of the Fano resonance, which arises from a symmetry protected bound state in continuum, to the first order lattice mode of the metamaterial array leads to stronger field confinement and substantial enhancement of both Q factor and FoM. As such enhancement occurs in planar metamaterials independently of the resonator geometry, the proposed approach can be utilized for a wide range of high-Q and high-sensitivity terahertz metadevices.
Nanyang Technological University
Caiwei, Thomas Tan
9bffc8f9-a3f6-4195-9e0d-126a1f1f0f2b
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Singh, Ranjan
895cd3c3-d3d4-4c1f-81f9-f7cbbd13eae8
Caiwei, Thomas Tan
9bffc8f9-a3f6-4195-9e0d-126a1f1f0f2b
Plum, Eric
50761a26-2982-40df-9153-7aecc4226eb5
Singh, Ranjan
895cd3c3-d3d4-4c1f-81f9-f7cbbd13eae8

(2020) Replication Data for: Lattice enhanced Fano resonances from bound states in the continuum metasurfaces. Nanyang Technological University doi:10.21979/n9/5ifnou [Dataset]

Record type: Dataset

Abstract

Fano resonances in metamaterials are known for their high quality (Q) factor and high sensitivity to external perturbations, which makes them attractive for sensors, lasers, non-linear and slow light devices. However, Fano resonances with higher Q factors obtained through structural optimization of individual resonators are accompanied by lower resonance intensity, thereby limiting the overall figure of merit (FoM) of the resonance. This article reports a strategy for simultaneously enhancing the Q factor and FoM of Fano resonances in terahertz metamaterials. Coupling of the Fano resonance, which arises from a symmetry protected bound state in continuum, to the first order lattice mode of the metamaterial array leads to stronger field confinement and substantial enhancement of both Q factor and FoM. As such enhancement occurs in planar metamaterials independently of the resonator geometry, the proposed approach can be utilized for a wide range of high-Q and high-sensitivity terahertz metadevices.

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More information

Published date: 2020

Identifiers

Local EPrints ID: 448537
URI: http://eprints.soton.ac.uk/id/eprint/448537
PURE UUID: 3edd0baf-b3b6-4cc0-8ba5-4b919e61334c
ORCID for Eric Plum: ORCID iD orcid.org/0000-0002-1552-1840

Catalogue record

Date deposited: 26 Apr 2021 16:34
Last modified: 16 Nov 2022 02:38

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Contributors

Contributor: Thomas Tan Caiwei
Contributor: Eric Plum ORCID iD
Contributor: Ranjan Singh

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