%0 Journal Article
%@ 1521-4095
%A Chen, S
%A Zeuner, F
%A Weismann, M
%A Reineke, B
%A Li, G
%A Valev, VK
%A Cheah, KW
%A Panoiu, NC
%A Zentgraf, T
%A Zhang, S
%D 2016
%F discovery:1479901
%J Advanced Materials
%N 15
%P 2992-2999
%T Giant Nonlinear Optical Activity of Achiral Origin in Planar Metasurfaces with Quadratic and Cubic Nonlinearities
%U https://discovery.ucl.ac.uk/id/eprint/1479901/
%V 28
%X 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.
%Z 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.