Second-harmonic generation based on double higher-order topological corner states

Topological corner state provides a promising platform for enhancing nonlinear optical effects, since it enables the light highly localized and is topologically protected against defects. Here, we realize second-harmonic generation (SHG) based on the nonlinear interactions between two different type...

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Bibliographic Details
Main Authors: Jia-Lin Li, Jun-Fang Wu, Chao Li
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221137972300253X