Observation of anti-stokes fluorescence cooling in thulium-doped glass

We report the first observation of anti-Stokes fluorescence cooling in a thulium-doped solid with pump excitation at 1.82 m<lambda<1.97 m. At a pump wavelength of 1.9 m and incident average power of approximately 3 W, a Tm3+:ZBLANP ( ZrF4-BaF2-LaF3-AlF3-NaF-PbF2) sample cooled to -1.2 degrees...

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Bibliographic Details
Published inPhysical review letters Vol. 85; no. 17; p. 3600
Main Authors Hoyt, CW, Sheik-Bahae, M, Epstein, RI, Edwards, BC, Anderson, JE
Format Journal Article
LanguageEnglish
Published United States 23.10.2000
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Summary:We report the first observation of anti-Stokes fluorescence cooling in a thulium-doped solid with pump excitation at 1.82 m<lambda<1.97 m. At a pump wavelength of 1.9 m and incident average power of approximately 3 W, a Tm3+:ZBLANP ( ZrF4-BaF2-LaF3-AlF3-NaF-PbF2) sample cooled to -1.2 degrees C from room temperature for a single pass of the pump beam. This corresponds to an absorbed pump power of approximately 40 mW and a peak temperature change per absorbed power of approximately -30 degrees C/W from room temperature.
ISSN:1079-7114
DOI:10.1103/physrevlett.85.3600