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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 9 — May. 1, 2014
  • pp: 2747–2750

Laser cooling of Yb3+-doped LuLiF4 crystal

Biao Zhong, Jigang Yin, Youhua Jia, Lin Chen, Yin Hang, and Jianping Yin  »View Author Affiliations

Optics Letters, Vol. 39, Issue 9, pp. 2747-2750 (2014)

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In order to meet the demands for applications of optical refrigerators in the fields of spaceflight, aviation, space science, and detection, a 2 wt. % Yb3+-doped LuLiF4 crystal, as a new laser cooling material, was prepared and demonstrated by using a 178 mW diode laser centered at 1015 nm and a resonant extra-cavity scheme with an enhancement factor of 12.8. Cooling efficiency of 1.27% and a temperature drop of 14.3K/W are obtained with 79% of the incident laser power being absorbed. Based on our results, a sample with background absorption of α=4.2×104cm1 can be potentially cooled down to 145K. Our investigation shows that Yb3+-doped LuLiF4 crystal is potentially a promising candidate for solid-state refrigeration.

© 2014 Optical Society of America

OCIS Codes
(140.3320) Lasers and laser optics : Laser cooling
(140.4780) Lasers and laser optics : Optical resonators
(160.5690) Materials : Rare-earth-doped materials
(300.1030) Spectroscopy : Absorption
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:

Original Manuscript: January 16, 2014
Revised Manuscript: March 19, 2014
Manuscript Accepted: March 24, 2014
Published: April 29, 2014

Biao Zhong, Jigang Yin, Youhua Jia, Lin Chen, Yin Hang, and Jianping Yin, "Laser cooling of Yb3+-doped LuLiF4 crystal," Opt. Lett. 39, 2747-2750 (2014)

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