Publikation: Optical refrigeration to 119 K, below National Institute of Standards and Technology cryogenic temperature
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Optics Letters. 2013, 38(9), pp. 1588-1590. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.38.001588
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We report on bulk optical refrigeration of Yb:YLF crystal to a temperature of 124 K, starting from the ambient. This is achieved by pumping the E4-E5 Stark multiplet transition at 1020 nm. A lower temperature of 119±1 K (−154C) with available cooling power of 18 mW is attained when the temperature of the surrounding crystal is reduced to 210 K. This result is within only a few degrees of the minimum achievable temperature of our crystal and signifies the bulk solid-state laser cooling below the National Institute of Standards and Technology (NIST)-defined cryogenic temperature of 123 K.
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MELGAARD, Seth, Denis V. SELETSKIY, Alberto DILIETO, Mauro TONELLI, Mansoor SHEIK-BAHAE, 2013. Optical refrigeration to 119 K, below National Institute of Standards and Technology cryogenic temperature. In: Optics Letters. 2013, 38(9), pp. 1588-1590. ISSN 0146-9592. eISSN 1539-4794. Available under: doi: 10.1364/OL.38.001588BibTex
@article{Melgaard2013-05-01Optic-25439,
year={2013},
doi={10.1364/OL.38.001588},
title={Optical refrigeration to 119 K, below National Institute of Standards and Technology cryogenic temperature},
number={9},
volume={38},
issn={0146-9592},
journal={Optics Letters},
pages={1588--1590},
author={Melgaard, Seth and Seletskiy, Denis V. and DiLieto, Alberto and Tonelli, Mauro and Sheik-Bahae, Mansoor}
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