Laser cooling with Tm3+-doped nano-crystals of oxy-fluoride glass ceramic

Galina Nemova; Raman Kashyap

doi:10.1117/12.922163

1 May 2012 Laser cooling with Tm³⁺-doped nano-crystals of oxy-fluoride glass ceramic

Galina Nemova, Raman Kashyap

Proceedings Volume 8424, Nanophotonics IV; 84242I (2012) https://doi.org/10.1117/12.922163
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

A theoretical scheme for laser cooling in Tm³⁺-doped oxy-fluoride glass ceramic (GC) is presented. It is shown that the unique combination of high chemical and mechanical stability of the oxide glass and low phonon energy of the fluoride nano-crystals, which trap a majority of Tm³⁺ ions, is beneficial for laser cooling of solids. The effective embedding of rare-earth ions in the crystalline phase with low phonon energy provides high quantum efficiency for the ³F₄ → ³H₆ transition involved in the cooling cycle in the Tm³⁺ ions, which is a key parameter for laser cooling of solids.

Citation Download Citation

Galina Nemova and Raman Kashyap "Laser cooling with Tm³⁺-doped nano-crystals of oxy-fluoride glass ceramic", Proc. SPIE 8424, Nanophotonics IV, 84242I (1 May 2012); https://doi.org/10.1117/12.922163

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