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Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities

Chen, S; Zeuner, F; Weismann, M; Reineke, B; Li, G; Valev, VK; Cheah, KW; ... Zhang, S; + view all (2016) Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities. Advanced Materials , 28 (15) pp. 2992-2999. 10.1002/adma.201505640. Green open access

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Abstract

3D chirality is shown to be unnecessary for introducing strong circular dichroism for harmonic generations. Specifically, near-unity circular dichroism for both second-harmonic generation and third-harmonic generations is demonstrated on suitably designed ultrathin plasmonic metasurfaces with only 2D planar chirality. The study opens up new routes for designing chip-type biosensing platform, which may allow for highly sensitive detection of bio- and chemical molecules with weak chirality.

Type: Article
Title: Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/adma.201505640
Publisher version: http://dx.doi.org/10.1002/adma.201505640
Language: English
Additional information: Copyright © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: [Chen, S; Zeuner, F; Weismann, M; Reineke, B; Li, G; Valev, VK; Cheah, KW; (2016) Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities. Advanced Materials , 28 (15) pp. 2992-2999. 10.1002/adma.201505640], which has been published in final form at http://dx.doi.org/10.1002/adma.201505640. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1479901
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