| ATOMIC AND MOLECULAR PHYSICS |
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Two Kinds of Cavity Geometry for Enhanced Laser Cooling of Solids |
JIA You-Hua1,2, ZHONG Biao2, YIN Jian-Ping2 |
| 1Science College, Shanghai Second Polytechnic University, Shanghai 201209 2State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062 |
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| Cite this article: |
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JIA You-Hua, ZHONG Biao, YIN Jian-Ping 2010 Chin. Phys. Lett. 27 073201 |
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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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Received: 01 February 2010
Published: 28 June 2010
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