Abstract
We present a generalized model for optical refrigeration with doped fluoride crystals in which the dopant concentration dependent upconversion is considered. Based on the spectrum properties of candidate rare-earth ions (, , and ) for optical refrigeration, a common criterion for upconversion assisted cooling is derived. The cooling performances of crystals are simulated to reveal the practical dopant concentration range for cooling. It is found that the optimal dopant concentration is determined by a balancing consideration of heat loads induced by background absorption and fluorescence quenching. The appropriate pump wavelengths for optical refrigeration with crystals are also indicated.
© 2013 Optical Society of America
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Guang-Zong Dong and Xin-Lu Zhang, "Role of upconversion in optical refrigeration: a theoretical study of laser cooling with Ho3+ doped fluoride crystals: erratum," J. Opt. Soc. Am. B 32, 2246-2247 (2015)https://opg.optica.org/josab/abstract.cfm?uri=josab-32-11-2246
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