Spectroscopic properties of Cr,Yb:YAG nanocrystals under intense NIR radiation

被引：5
|
作者：
Chaika, M. [1 ]
Tomala, R. [1 ]
Bezkrovnyi, O. [1 ]
Strek, W. [1 ]
机构：
[1] Polish Acad Sci, Inst Low Temp & Struct Res, Wroclaw, Poland
来源：
MATERIALS RESEARCH BULLETIN | 2023年 / 163卷
关键词：
White light emission; Up-conversion; Intervalence charge transfer; Yb; Cr; YAG nanocrystals; LASER; GENERATION; IONIZATION;
D O I：
10.1016/j.materresbull.2023.112201
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Laser induced white emission (LIWE) was thoroughly studied in recent decades. However, despite the progress in understanding of this phenomenon, the mechanism behind LIWE remains unclear. The present paper focuses on the influence of Yb content on the LIWE properties of Cr,Yb:YAG nanocrystals. Microstructure and optical properties of the samples were characterized and the influence of the concentration of Yb3+ ions on the spec-troscopic properties of Cr,Yb:YAG and energy transfer processes between Cr3+ and Yb3+ ions was revealed. Multiphoton ionization theory was used to explain the findings of the paper.
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页数：9
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