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Proceedings Paper

Anti-Stokes laser cooling in Yb3+-doped KPb2Cl5 crystal
Author(s): Joaquin R. Fernandez; A. Mendioroz; Rolindes Balda
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Paper Abstract

We report internal laser cooling in Yb3+ doped KPb2Cl5 crystal. From the quantum efficiency values measured in the heating and cooling regions by using the photothermal deflection technique, we have obtained a room temperature cooling efficiency of 0.2% in a sample doped with about 5 x 1019 ions/cm3. Excitation spectra obtained under high irradiation fluences show an excess of fluorescence with regard to those obtained at low fluences, which agrees with the prediction of a model based on the photon-ion-phonon interaction.

Paper Details

Date Published: 9 April 2003
PDF: 5 pages
Proc. SPIE 5131, Third GR-I International Conference on New Laser Technologies and Applications, (9 April 2003); doi: 10.1117/12.513507
Show Author Affiliations
Joaquin R. Fernandez, Escuela Superior de Ingenieros (Spain)
Centro Mixto CSIC-UPV/EHU (Spain)
Donostia International Physics Center (Spain)
A. Mendioroz, Escuela Superior de Ingenieros (Spain)
Rolindes Balda, Escuela Superior de Ingenieros (Spain)
Centro Mixto CSIC-UPV/EHU (Spain)
Donostia International Physics Center (Spain)


Published in SPIE Proceedings Vol. 5131:
Third GR-I International Conference on New Laser Technologies and Applications
Alexis Carabelas; Giuseppe Baldacchini; Paolo Di Lazzaro; Dimitrios Zevgolis, Editor(s)

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