TY - JOUR
T1 - Feasibility evaluation of intracavity solid state laser cooling to cryogenic temperatures
AU - Heeg, B.
AU - Rumbles, G.
AU - Stone, M. D.
AU - Khizhnyak, A.
AU - Debarber, P. A.
N1 - Funding Information:
This work was sponsored by the United States Air Force, Air Force Materiel Command, Air Force Research Laboratory (AFRL), Phillips Research Site, 3550 Aberdeen Avenue, SE, Kirtland AFB, NM 87117-5776.
PY - 2006/5/20
Y1 - 2006/5/20
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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U2 - 10.1080/09500340500499674
DO - 10.1080/09500340500499674
M3 - Article
AN - SCOPUS:33646455003
VL - 53
SP - 1109
EP - 1120
JO - Journal of Modern Optics
JF - Journal of Modern Optics
SN - 0950-0340
IS - 8
ER -