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Proceedings Paper

Differential luminescence thermometry in laser cooling of solids
Author(s): W. Patterson; E. Soto; M. Fleharty; M. Sheik-Bahae
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Paper Abstract

We have developed a non-contact spectroscopic technique to measure the temperature change of Thulium-doped glasses and crystals with high precision. The approach makes use of temperature-dependent broadening of various peaks in the luminescence spectra. A weak, cw probe laser excites the sample in vacuum. The luminescence spectrum is collected by a fiber and routed to a high-resolution spectrometer. We have demonstrated temperature resolution of 62 mK in Tm:BaY2F8.

Paper Details

Date Published: 7 March 2007
PDF: 6 pages
Proc. SPIE 6461, Laser Cooling of Solids, 64610B (7 March 2007); doi: 10.1117/12.710004
Show Author Affiliations
W. Patterson, Univ. of New Mexico (United States)
E. Soto, Univ. of New Mexico (United States)
M. Fleharty, Univ. of New Mexico (United States)
M. Sheik-Bahae, Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 6461:
Laser Cooling of Solids
Richard I. Epstein; Mansoor Sheik-Bahae, Editor(s)

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