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Optical cryocoolers for sensors and electronics
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Paper Abstract

Solid-state optical refrigeration is an emerging cooling technology that can provide vibration free and reliable refrigeration to cryogenic temperatures in a lightweight and compact device. The technology has matured over the past two decades and is currently being considered for applications where the mechanical vibrations, limited reliability, or insufficient portability of existing cooling technologies pose challenges. Possible applications include satellite-borne infrared imaging, laser metrology, and gamma-ray spectroscopy as well as high-reliability cooling of semiconductors and high-temperature superconductors. The best results achieved so far have been in cooling rare-earth-doped solids, especially materials doped with ytterbium. We discuss the fundamental physical principles of solid-state laser cooling, the resulting material and device design requirements, and the estimated payload heat lift of an optical cryocooler.

Paper Details

Date Published: 24 June 2014
PDF: 10 pages
Proc. SPIE 9070, Infrared Technology and Applications XL, 90702K (24 June 2014); doi: 10.1117/12.2052941
Show Author Affiliations
Richard I. Epstein, ThermoDyamic Films LLC (United States)
Markus P. Hehlen, Los Alamos National Lab. (United States)
Mansoor Sheik-Bahae, The Univ. of New Mexico (United States)
Seth D. Melgaard, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 9070:
Infrared Technology and Applications XL
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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