Passively Q-switched near-infrared lasers with bismuthene quantum dots as the saturable absorber

•Bismuthene quantum dots (Bi-QDs) were fabricated by the LPE method.•Bi-QDs possessed large nonlinear optical properties in NIR region.•Bi-QDs SA Q-switched lasers can produce the minimum pulse duration of 150 ns.•Absorption cross sections of Bi-QDs were investigated for the first time.•The influenc...

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Veröffentlicht in:	Optics and laser technology 2020-08, Vol.128, p.106219, Article 106219
Hauptverfasser:	Dong, Li, Huang, Weichun, Chu, Hongwei, Li, Ying, Wang, Yunzheng, Zhao, Shengzhi, Li, Guiqiu, Zhang, Han, Li, Dechun
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorbers Absorption cross sections Apertures Bismuthene quantum dots Broadband Excitation Infrared lasers Liquid phases Modulation Near infrared radiation Nonlinear Optical properties Optical properties Pulse duration Q switched lasers Q-switching Quantum dots Rate equations Repetition Saturable absorber
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