Anti-Stokes luminescence cooling of Tm3+ doped BaY2F8.
We report laser-induced cooling with thulium-doped BaY2F8 single crystals grown using the Czochralski technique. The spectroscopic characterization of the crystals has been used to evaluate the laser cooling performance of the samples. Cooling by 3 degrees below ambient temperature is obtained in a single-pass geometry with 4.4 Watts of pump laser power at lambda = 1855 nm.
Optical Science and Engineering Program, Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM 87131, USA.
Wendy
W
Patterson
Stefano
S
Bigotta
Mansoor
M
Sheik-Bahae
Daniela
D
Parisi
Mauro
M
Tonelli
Richard
R
Epstein
D016880:Anisotropy; D017609:Barium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D003080:Cold Temperature; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D007834:Lasers; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D008674:Metals, Rare Earth / Q000737:chemistry* / Q000528:radiation effects*
D017609:Barium Compounds; D008674:Metals, Rare Earth; C055150:barium fluoride; D005459:Fluorides