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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Anti-stokes laser cooling in bulk erbium-doped materials
Joaquin Fernandez1, Angel J Garcia-Adeva, Rolindes Balda
1Departamento de Fisica Aplicada I, E.T.S. Ingenieria de Bilbao, Alda. Urquijo s/n, 48013 Bilbao, Spain. wupferoj@bi.ehu.es
Physical Review Letters
|August 16, 2006
Abstract:
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.
