Feasibility evaluation of intracavity solid state laser cooling to cryogenic temperatures

B. Heeg; G. Rumbles; M. D. Stone; A. Khizhnyak; P. A. Debarber

doi:10.1080/09500340500499674

Feasibility evaluation of intracavity solid state laser cooling to cryogenic temperatures

B. Heeg, G. Rumbles, M. D. Stone, A. Khizhnyak, P. A. Debarber

National Renewable Energy Laboratory

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

The requirements tor obtaining cryogenic temperatures (i.e. 150 K and below) by anti-Stokes fluorescence cooling are analysed for a dielectric cooling medium located inside the cavity of a diode-pumped solid slate laser. The cooling efficiency is derived in terms of pump beam parameters, intracavily loss associated with the cooling medium, reabsorption and saturation effects in the gain medium, radiative and conductive heat load on the cooling medium, and finally bulk and surface heating effects. Using experimental data for a Yb ³⁺:ZrF₄-BaF₂-LaF₃-AlF ₃-NaF [ZBLAN] cooling medium and a Yb³⁺:KY(WO4) ₂ [KYW] gain medium, the conditions for optimum cooling efficiency are obtained. Based on realistic materials properties, the analysis shows that it is feasible to obtain a cooling efficiency (i.e. cooling power per input diode pump power) of approximately 0.1% at an operating temperature of 150K, with a heat lift up to 30 mW.

Original language	English
Pages (from-to)	1109-1120
Number of pages	12
Journal	Journal of Modern Optics
Volume	53
Issue number	8
DOIs	https://doi.org/10.1080/09500340500499674
Publication status	Published - May 20 2006

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Heeg, B., Rumbles, G., Stone, M. D., Khizhnyak, A., & Debarber, P. A. (2006). Feasibility evaluation of intracavity solid state laser cooling to cryogenic temperatures. Journal of Modern Optics, 53(8), 1109-1120. https://doi.org/10.1080/09500340500499674

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abstract = "The requirements tor obtaining cryogenic temperatures (i.e. 150 K and below) by anti-Stokes fluorescence cooling are analysed for a dielectric cooling medium located inside the cavity of a diode-pumped solid slate laser. The cooling efficiency is derived in terms of pump beam parameters, intracavily loss associated with the cooling medium, reabsorption and saturation effects in the gain medium, radiative and conductive heat load on the cooling medium, and finally bulk and surface heating effects. Using experimental data for a Yb 3+:ZrF4-BaF2-LaF3-AlF 3-NaF [ZBLAN] cooling medium and a Yb3+:KY(WO4) 2 [KYW] gain medium, the conditions for optimum cooling efficiency are obtained. Based on realistic materials properties, the analysis shows that it is feasible to obtain a cooling efficiency (i.e. cooling power per input diode pump power) of approximately 0.1% at an operating temperature of 150K, with a heat lift up to 30 mW.",

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AU - Debarber, P. A.

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N2 - The requirements tor obtaining cryogenic temperatures (i.e. 150 K and below) by anti-Stokes fluorescence cooling are analysed for a dielectric cooling medium located inside the cavity of a diode-pumped solid slate laser. The cooling efficiency is derived in terms of pump beam parameters, intracavily loss associated with the cooling medium, reabsorption and saturation effects in the gain medium, radiative and conductive heat load on the cooling medium, and finally bulk and surface heating effects. Using experimental data for a Yb 3+:ZrF4-BaF2-LaF3-AlF 3-NaF [ZBLAN] cooling medium and a Yb3+:KY(WO4) 2 [KYW] gain medium, the conditions for optimum cooling efficiency are obtained. Based on realistic materials properties, the analysis shows that it is feasible to obtain a cooling efficiency (i.e. cooling power per input diode pump power) of approximately 0.1% at an operating temperature of 150K, with a heat lift up to 30 mW.

AB - The requirements tor obtaining cryogenic temperatures (i.e. 150 K and below) by anti-Stokes fluorescence cooling are analysed for a dielectric cooling medium located inside the cavity of a diode-pumped solid slate laser. The cooling efficiency is derived in terms of pump beam parameters, intracavily loss associated with the cooling medium, reabsorption and saturation effects in the gain medium, radiative and conductive heat load on the cooling medium, and finally bulk and surface heating effects. Using experimental data for a Yb 3+:ZrF4-BaF2-LaF3-AlF 3-NaF [ZBLAN] cooling medium and a Yb3+:KY(WO4) 2 [KYW] gain medium, the conditions for optimum cooling efficiency are obtained. Based on realistic materials properties, the analysis shows that it is feasible to obtain a cooling efficiency (i.e. cooling power per input diode pump power) of approximately 0.1% at an operating temperature of 150K, with a heat lift up to 30 mW.

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