Lithium niobate waveguide-integrated Bi2Te3/graphene heterojunction photodetector

We demonstrate an on-chip photodetector by integrating a graphene and topological insulator Bi2Te3 heterostructure on a thin-film lithium niobate waveguide. Lithium niobate on insulator (LNOI) waveguides are fabricated by the photolithography-assisted chemical mechanical etching method. The bismuth...

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Veröffentlicht in:	Optics letters 2024-10, Vol.49 (20), p.5969
Hauptverfasser:	Yuan, Tingfei, Dong, Qiaonan, Sun, Xinxing, Gao, Lang, Zheng, Yong, Wang, Ke, Wu, Rongbo, Cheng, Ya
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorptivity Bismuth tellurides Graphene Heterojunctions Heterostructures Lithium niobates Photoelectric effect Photolithography Photometers Thin films Topological insulators Waveguides
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