Visible Topological Lasing Based on a Polymer-cholesteric Liquid Crystal Superlattice

Yu Wang,Donghao Yang,Shaohua Gao,Xinzheng Zhang,Irena Drevensek-Olenik,Qiang Wu,Marouen Chemingui,Zhigang Chen,Jingjun Xu

Conference on Lasers and Electro-Optics（2022）

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摘要

Low-threshold topological lasing at visible wavelengths and with circular polarizations is demonstrated theoretically, and experimentally in a femtosecond-laser-written micron-sized polymer-cholesteric liquid crystal composite structure by manipulating the topological mini-bands based on the Su-Schrieffer-Heeger model.

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关键词

circular polarizations,femtosecond-laser-written micron-sized polymer-cholesteric liquid crystal composite structure,topological mini-bands,low-threshold-visible topological lasing,Su-Schrieffer-Heeger model

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