Advances in laser cooling of thulium-doped glass

被引:105
|
作者
Hoyt, CW
Hasselbeck, MP
Sheik-Bahae, M
Epstein, RI
Greenfield, S
Thiede, J
Distel, J
Valencia, J
机构
[1] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
关键词
D O I
10.1364/JOSAB.20.001066
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Recent developments in cooling thulium-doped heavy-metal fluoride glass are presented. Thulium-doped fluorozirconate (ZBLANP) is cooled to 19 K below ambient with a multiple-pass pump scheme. This represents over an order of magnitude increase from the previously reported single-pass geometry. The results agree with a simple model for anti-Stokes fluorescence cooling that includes considerations of quantum efficiency and parasitic heating mechanisms. Issues relating to a practical optical refrigerator are examined, including a general model for the effects of multiple pump passes. (C) 2003 Optical Society of America.
引用
收藏
页码:1066 / 1074
页数:9
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