Document Type

Journal Article

Department/Unit

Department of Physics

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.

Publication Year

2016

Journal Title

Advanced Materials

Volume number

28

Issue number

15

Publisher

Wiley

First Page (page number)

2992

Last Page (page number)

2999

Referreed

1

Funder

EPSRC. Grant Number: EP/J018473/1 ; Leverhulme. Grant Number: RPG-2012-674 ; Deutsche Forschungsgemeinschaft. Grant Numbers: TRR142/A05, ZE953/7-1 ; European Research Council/ERC. Grant Number: ERC-2014-CoG-648328 ; NSFC. Grant Number: 61328503

DOI

10.1002/adma.201505640

ISSN (print)

09359648

Copyright

This is the peer reviewed version of the following article: Chen, S., Zeuner, F., Weismann, M., Reineke, B., Li, G., Valev, V. K., . . . Zhang, S. (2016). Giant nonlinear optical activity of achiral origin in planar metasurfaces with quadratic and cubic nonlinearities. Advanced Materials, 28(15), 2992-2999. doi:10.1002/adma.201505640, which has been published in final form at https://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.

Keywords

metasurfaces, nonlinear optics, circular dichroism, plasmonic

ISSN (electronic)

15214095

Additional Files

JA-4861-28981_suppl.pdf (197 kB)

Included in

Physics Commons

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