Spectroscopic and thermal study of Er-doped oxysulfide crystal powders

被引：4
|
作者：
Fernandez, Joaquin [1 ,2 ,3 ]
Balda, Rolindes [1 ,2 ,3 ]
Barredo-Zuriarrain, Macarena [1 ]
Merdrignac-Conanec, Odile [4 ]
Hakmeh, Noha [4 ]
Garcia-Reville, Sara [1 ,2 ,3 ]
Angeles Arriandiaga, M. [5 ]
机构：
[1] Univ Basque Country, Escuela Super Ingn, Dept Fis Aplicada 1, Bilbao, Spain
[2] CSIC UPV EHU, Ctr Phys Mat, San Sebastian 20080, Spain
[3] Donostia Int Phys Ctr, San Sebastian 20080, Spain
[4] Univ Rennes 1, UMR CNRS 6226, Lab Verres & Ceram, F-35042 Rennes, France
[5] Univ Basque Country, Fac Ciencias & Tecnol, Dept Fis Aplicada 2, Bilbao, Spain
来源：
LASER REFRIGERATION OF SOLIDS VIII | 2015年 / 9380卷
关键词：
Laser cooling; Erbium; Low phonon materials; Upconversion;
D O I：
10.1117/12.2076963
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The present investigation explores the upconversion properties of Er3+ - doped La2O2S crystal powder as well as its potentiality for anti-Stokes cooling. A detailed study of the wavelength and pumping power dependence of the spectroscopic properties and of the temperature field of samples with various erbium concentrations is presented. The analysis of both spectroscopic and thermal measurements shows that after a transient heating induced by the background absorption, cooling can be attained by means of anti-Stokes processes.
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页数：10
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