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Proceedings Paper

Advances in optical cryo-cooler device development (Conference Presentation)

Paper Abstract

Optical refrigeration of a Yb:YLF crystal can be used to cool an arbitrary payload, utilizing a novel MgF2 thermal link in a completely vibration free optical cryocooler. We discuss the latest advances in the design and implementation of an astigmatic Herriott cell to optimize pump laser absorption in the cooling crystal, and are studying the adverse effects of absorption saturation. We investigate novel spectrally selective coatings of the clamshell to reduce the parasitic heat load on the crystal. By overcoming these challenges, we work towards cooling a silicon reference cavity to a temperature of 124 K.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11298, Photonic Heat Engines: Science and Applications II, 1129808 (9 March 2020); doi: 10.1117/12.2547614
Show Author Affiliations
Jackson Kock, The Univ. of New Mexico (United States)
Junwei Meng, The Univ. of New Mexico (United States)
Azzurra Volpi, The Univ. of New Mexico (United States)
Alexander R. Albrecht, The Univ. of New Mexico (United States)
Richard I. Epstein, ThermoDynamic Films LLC (United States)
Mansoor Sheik-Bahae, The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 11298:
Photonic Heat Engines: Science and Applications II
Denis V. Seletskiy; Richard I. Epstein; Mansoor Sheik-Bahae, Editor(s)

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