Light-induced symmetry breaking for enhancing second-harmonic generation from an ultrathin plasmonic nanocavity

Guang-Can Li; Dangyuan Lei; Meng Qiu; Wei Jin; Sheng Lan; Anatoly V. Zayats

doi:10.1038/s41467-021-24408-x

Nature Communications (Jul 2021)

Light-induced symmetry breaking for enhancing second-harmonic generation from an ultrathin plasmonic nanocavity

Guang-Can Li,
Dangyuan Lei,
Meng Qiu,
Wei Jin,
Sheng Lan,
Anatoly V. Zayats

Affiliations

Guang-Can Li: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University
Dangyuan Lei: Department of Materials Science and Engineering, City University of Hong Kong
Meng Qiu: Department of Electrical Engineering, The Hong Kong Polytechnic University
Wei Jin: Department of Electrical Engineering, The Hong Kong Polytechnic University
Sheng Lan: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University
Anatoly V. Zayats: Department of Physics and London Centre for Nanotechnology, King’s College London, Strand

DOI: https://doi.org/10.1038/s41467-021-24408-x
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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In nanoplasmonic systems symmetry can often suppress the second harmonic generation (SHG) is spite of the highly enhanced fields. Here, the authors demonstrate light-induced symmetry breaking that enables strong SHG enhancement from symmetric nanophotonic systems with certain properties.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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