Two Kinds of Cavity Geometry for Enhanced Laser Cooling of Solids |
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| Authors: | JIA You-Hua ZHONG Biao YIN Jian-Ping |
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| Affiliation: | Science College, Shanghai Second Polytechnic University, Shanghai 201209 State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062 |
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| Abstract: | We present a comparison between intracavity cooling and external cavity cooling for optical refrigeration. The results show that the intracavity scheme is preferred at low optical densities (<0.008), while the external cavity scheme is preferred at higher optical densities (>0.01). We can choose the proper scheme for different cases in experiments. Moreover, under the same conditions, taking Yb3+-doped ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) film as an example, the cooling processes of the two scheme are obtained. The calculated results show that intracavity cooling will achieve a larger temperature drop for a thin film sample. Finally, the diode laser may become a candidate for the intracavity model briefly discussed. |
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| Keywords: | 32 80 Pj 78 20 Bh 42 55 Px |
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