Experimental evidence for laser cooling of Yb:YLF to 120 Kelvin

Seth D. Melgaard; Denis Seletskiy; Alberto Di Lieto; Mauro Tonelli; Mansoor Sheik-Bahae

doi:10.1117/12.878933

8 February 2011 Experimental evidence for laser cooling of Yb:YLF to 120 Kelvin

Seth D. Melgaard, Denis Seletskiy, Alberto Di Lieto, Mauro Tonelli, Mansoor Sheik-Bahae

Proceedings Volume 7951, Laser Refrigeration of Solids IV; 795105 (2011) https://doi.org/10.1117/12.878933
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

We utilize highly sensitive spectroscopic local temperature probe to ascertain cooling performance of Yb:YLF crystal as a function of wavelength and temperature. A minimum achievable temperature of 120 K is measured at pump wavelength corresponding to E4-E5 Stark manifold transition. Results verify current model for laser cooling cycle as well as demonstrate the lowest temperature achievable by means of optical refrigeration to date.

Citation Download Citation

Seth D. Melgaard, Denis Seletskiy, Alberto Di Lieto, Mauro Tonelli, and Mansoor Sheik-Bahae "Experimental evidence for laser cooling of Yb:YLF to 120 Kelvin", Proc. SPIE 7951, Laser Refrigeration of Solids IV, 795105 (8 February 2011); https://doi.org/10.1117/12.878933

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