Near-infrared anti-Stokes photoluminescence of PbS QDs embedded in glasses

被引：18
|
作者：
Xiong, Yuda [1 ]
Liu, Chao [1 ]
Wang, Jing [1 ]
Han, Jianjun [1 ]
Zhao, Xiujian [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, 122 Luoshi Rd, Wuhan 430070, Peoples R China
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 06期
关键词：
QUANTUM DOTS; LASER;
D O I：
10.1364/OE.25.006874
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Near-infrared photoluminescence properties of PbS QDs embedded in glasses were investigated upon below-bandgap excitation. PbS QDs were precipitated in the glasses upon thermal treatment. Near-infrared anti-Stokes photoluminescence ( ASPL) from PbS QDs was observed. Dependence of the ASPL on size and excitation power indicated that ASPL was phonon-assisted one-photon process. These near-infrared anti-Stokes photoluminescence of PbS QDs in glasses have potential applications for light conversion and laser cooling. (C) 2017 Optical Society of America
引用
收藏
页码：6874 / 6882
页数：9
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