Solid-state optical refrigeration to sub-100 Kelvin regime.
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ABSTRACT: Since the first demonstration of net cooling twenty years ago, optical refrigeration of solids has progressed to outperform all other solid-state cooling processes. It has become the first and only solid-state refrigerator capable of reaching cryogenic temperatures, and now the first solid-state cooling below 100 K. Such substantial progress required a multi-disciplinary approach of pump laser absorption enhancement, material characterization and purification, and thermal management. Here we present the culmination of two decades of progress, the record cooling to ≈ 91 K from room temperature.
SUBMITTER: Melgaard SD
PROVIDER: S-EPMC4742913 | biostudies-other | 2016
REPOSITORIES: biostudies-other
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