Abstract
We review progress on laser cooling of solids. The general process that enables cooling to occur is based on anti-Stokes fluorescence. Candidate materials for laser cooling are discussed, including gases, dyes, crystals, semiconductors, and ionically doped glasses. Cooling processes and necessary conditions for cooling are outlined, and general thermodynamic limitations are discussed. This is followed by a more detailed discussion of one specific material, ytterbium-doped ZBLAN, with consideration given to optimization of the laser cooling process and applications.
© 2003 Optical Society of America
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