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Laser cooling of a solid by 21 K starting from room temperature

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3 Author(s)
Gosnell, T.R. ; Condensed Matter & Thermal Phys. Group, Los Alamos Nat. Lab., NM, USA ; Luo, X. ; Eisaman, M.D.

Summary form only given.We demonstrate the laser cooling of an impurity-doped insulator by 0.3 K below room temperature. The cooling effect takes advantage of anti-Stokes photoluminescence of laser-excited Yb/sup 3+/ impurities and relies on the near-unit fluorescence quantum efficiency for this ion in a highly purified ZrF/sub 4/-BaF/sub 2/-LaF/sub 3/-ALF/sub 3/-NaF-PbF/sub 2/ (ZBLANP) glass host.

Published in:

Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International

Date of Conference:

8-8 May 1998