Laser cooling of 5 mol. % Yb3+ : LuLiF4 crystal in air

Biao Zhong; Hao Luo; Yanling Shi; Jianping Yin

doi:10.1117/1.OE.56.1.011102

30 August 2016 Laser cooling of 5 mol. % Yb³⁺ : LuLiF₄ crystal in air

Biao Zhong, Hao Luo, Yanling Shi, Jianping Yin

Author Affiliations +

Optical Engineering, Vol. 56, Issue 1, 011102 (August 2016). https://doi.org/10.1117/1.OE.56.1.011102

Abstract

We report the laser cooling performance of 5 mol. % Yb³⁺:LuLiF₄ crystal in air. Both end faces of the crystal with a size of 3×3×5 mm³ are cut by Brewster angles. A temperature drop of 11 K (from room temperature) of the sample, pumped by a 3-W/1020-nm CW fiber laser, is observed by a thermal camera. The cooling power and efficiency of the sample are estimated to be ∼14.5 mW and ∼1.9%, respectively. Our experiment results show the prospect of this crystal with laser cooling and its potential applications in earth-based optical refrigeration devices.

Citation Download Citation

Biao Zhong, Hao Luo, Yanling Shi, and Jianping Yin "Laser cooling of 5 mol. % Yb³⁺ : LuLiF₄ crystal in air," Optical Engineering 56(1), 011102 (30 August 2016). https://doi.org/10.1117/1.OE.56.1.011102

Published: 30 August 2016

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