Abstract
We present a theoretical scheme for laser cooling in -doped oxy-fluoride glass ceramic (GC). -doped GC has a unique combination of high chemical and mechanical stability related to the oxide glass and low phonon energy of the fluoride nanocrystals, which trap a majority of ions. This unique property of GC makes it attractive for a number of applications. The effective embedding of rare-earth ions in the crystalline phase with low phonon energy provides high quantum efficiency for the transition in the ions participating in the cooling cycle.
© 2012 Optical Society of America
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