Role of carrier-transfer in the optical nonlinearity of graphene/Bi2Te3 heterojunctions

Two-dimensional (2D) topological insulators (TIs) have attracted a lot of attention owing to their striking optical nonlinearity. However, the ultra-low saturable intensity (SI) of TIs resulting from the bulk conduction band limits their applications, such as in mode-locking solid-state lasers. In t...

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Veröffentlicht in:	Nanoscale 2020-08, Vol.12 (32), p.16956-16966
Hauptverfasser:	Jia-Chi, Lan, Qiao, Junpeng, Wei-Heng, Sung, Chun-Hu, Chen, Ren-Huai Jhang, Shi-Hsin, Lin, Li-Ren, Ng, Liang, Gengchiau, Meng-Yu, Wu, Li-Wei, Tu, Cheng-Maw, Cheng, Liu, Hong, Chao-Kuei, Lee
Format:	Artikel
Sprache:	eng
Schlagworte:	Bismuth tellurides Conduction bands Graphene Heterojunctions Mode locking Nonlinearity Pulse duration Solid state lasers Thickness Topological insulators
Online-Zugang:	Volltext
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