Abstract
We report the first observation of anti-Stokes laser-induced cooling in the crystal and in the () 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.
- Received 5 May 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.033001
©2006 American Physical Society