Abstract

We bring topological corner states to the realm of nanoscale photonics. We study experimentally topology-driven nonlinear effects at both edge and corner subwavelength topological states in optical valley-Hall dielectric metasurfaces.

© 2020 The Author(s)

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More Like This
Observation of nonlinear topological corner states

Sergey Kruk, Wenlong Gao, Duk Yong Choi, Thomas Zentgraf, Shuang Zhang, and Yuri Kivshar
M4D.9 Asia Communications and Photonics Conference (ACPC) 2020

Third-harmonic generation enhanced by topological corner states in valley-Hall dielectric metasurfaces

Sergey Kruk, Wenlong Gao, Duk Yong Choi, Thomas Zentgraf, Shuang Zhang, and Yuri Kivshar
FTu1L.8 CLEO: QELS_Fundamental Science (CLEO_QELS) 2021

Nonlinearity-induced transition of topological corner states

Zhichan Hu, Domenico Bongiovanni, Dario Jukić, Daohong Song, Hrvoje Buljan, and Zhigang Chen
FTh4H.4 CLEO: QELS_Fundamental Science (CLEO_QELS) 2021