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Proceedings Paper

Cooling enhancement in optical refrigeration by non-resonant optical cavities
Author(s): B. G. Farfan; A. Gragossian; G. Symonds; M. R. Ghasemkhani; A. R. Albrecht; M. Sheik-Bahae; R. I. Epstein
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Paper Abstract

We present a study of cooling enhancement in optical refrigerators by the implementation of advanced non-resonant optical cavities. Cavity designs have been studied to maximize pump light-trapping to improve absorption and thereby increase the efficiency of optical refrigeration. The approaches of non-resonant optical cavities by Herriott-cell and totalinternal- reflection were studied. Ray-tracing simulations and experiments were performed to analyze and optimize the different light-trapping configurations. Light trapping was studied for laser sources with high quality beams and for beams with large divergences, roughly corresponding to the output from fiber lasers and from diode lasers, respectively. We present a trade-off analysis between performance, reliability, and manufacturability.

Paper Details

Date Published: 17 May 2016
PDF: 8 pages
Proc. SPIE 9821, Tri-Technology Device Refrigeration (TTDR), 982104 (17 May 2016); doi: 10.1117/12.2222181
Show Author Affiliations
B. G. Farfan, ThermoDynamic Films, LLC (United States)
The Univ. of New Mexico (United States)
A. Gragossian, The Univ. of New Mexico (United States)
G. Symonds, ThermoDynamic Films, LLC (United States)
The Univ. of New Mexico (United States)
M. R. Ghasemkhani, The Univ. of New Mexico (United States)
A. R. Albrecht, The Univ. of New Mexico (United States)
M. Sheik-Bahae, The Univ. of New Mexico (United States)
R. I. Epstein, ThermoDynamic Films, LLC (United States)
The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 9821:
Tri-Technology Device Refrigeration (TTDR)
Richard I. Epstein; Bjørn F. Andresen; Markus P. Hehlen; Ingo N. Rühlich; Mansoor Sheik-Bahae; Thomas Fraser, Editor(s)

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