Reconfigurable group delay with tunable topological edge state based on phase transitions material Ge2Sb2Te5 in dual-band

We investigate reconfigurable reflected group delay in dual-band of the photonic crystal heterostructure containing phase transitions material Ge2Sb2Te5 and graphene in mid-infrared region. The giant phase change of reflected beam derives from the topological edge state excited at the boundary surfa...

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Bibliographic Details
Main Authors: Yao Lu, Qiaohong Yao, Mengdong He, Jiao Xu, Yuxiang Peng
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Physics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211379725000397
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