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Anti-stokes laser cooling in bulk erbium-doped materials

We report the first observation of anti-Stokes laser-induced cooling in the Er3+:KPb2Cl5 crystal and in the Er3+:CNBZn (CdF2-CdCl2-NaF-BaF2-BaCl2-ZnF2) glass. The internal cooling efficiencies have been calculated by using photothermal deflection spectroscopy. Thermal scans acquired with an infrared...

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Published in:Physical review letters 2006-07, Vol.97 (3), p.033001-033001
Main Authors: Fernandez, Joaquin, Garcia-Adeva, Angel J, Balda, Rolindes
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Language:English
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Garcia-Adeva, Angel J
Balda, Rolindes
description We report the first observation of anti-Stokes laser-induced cooling in the Er3+:KPb2Cl5 crystal and in the Er3+:CNBZn (CdF2-CdCl2-NaF-BaF2-BaCl2-ZnF2) glass. The internal cooling efficiencies have been calculated by using photothermal deflection spectroscopy. Thermal scans acquired with an infrared thermal camera proved the bulk cooling capability of the studied samples. The implications of these results are discussed.
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subjects BARIUM CHLORIDES
BARIUM FLUORIDES
CADMIUM CHLORIDES
CADMIUM FLUORIDES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COOLING
CRYSTALS
DOPED MATERIALS
ERBIUM IONS
GLASS
LASERS
LEAD FLUORIDES
SODIUM FLUORIDES
SPECTROSCOPY
ZINC FLUORIDES
title Anti-stokes laser cooling in bulk erbium-doped materials
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