DocumentCode
3451395
Title
Enhanced laser cooling of Tm-doped solids by upconversion pumping
Author
Jing Dai ; Li Li ; Xinlu Zhang
Author_Institution
Key Lab. of In-Fiber Integrated Opt. of Minist. of Educ., Harbin Eng. Univ., Harbin, China
fYear
2013
fDate
7-9 Sept. 2013
Firstpage
207
Lastpage
210
Abstract
We present a physical scheme of upconversion-assisted anti-Stokes fluorescence cooling in Tm doped low phonon materials. The upconversion pumping from the metastable level to the upconversion excited level is introduced to produce extra anti-Stokes cooling cycles which can improve the laser cooling performance. Both the limitation of the cooling cryogenic temperature and the range of the cooling wavelength can be extended notably in contrast to the traditional anti-Stokes cooling.
Keywords
cryogenics; fluorescence; laser cooling; metastable states; optical pumping; phonons; thulium; Tm doped low phonon materials; Tm-doped solids; cooling wavelength; cryogenic temperature; laser cooling; metastable level; upconversion excited level; upconversion pumping; upconversion-assisted antiStokes fluorescence cooling; Cooling; Fluorescence; Laser excitation; Laser theory; Pump lasers; Solid lasers; Solids; anti-Stokes fluorescence; laser cooling; rare earth solid;
fLanguage
English
Publisher
ieee
Conference_Titel
Optoelectronics and Microelectronics (ICOM), 2013 International Conference on
Conference_Location
Harbin
Print_ISBN
978-1-4799-1214-8
Type
conf
DOI
10.1109/ICoOM.2013.6626530
Filename
6626530
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