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自 1995年Epstein实现了光与热的制冷效应的历史性突破以来 ,由于该制冷方法具有全光性的独特优点 ,同时制备的制冷器具有无振动和噪声、无电磁辐射、体积小、质量轻、可靠性高等特点 ,因此反斯托克斯荧光制冷器在军事、航天卫星、微电子、低温物理与工程等领域具有非常诱人的应用前景。首先介绍了该制冷方式的发展历史、研究现状和激光制冷的研制水平 ;其次运用热力学基本定律对反斯托克斯荧光制冷过程中的能量转换关系及转换深度着重进行了分析 ,得出了这一过程的最大热力学效率的计算公式 ,为设计激光制冷器提供了热力学限制上限 ;最后对激光制冷的应用前景和问题进行了分析
Since Epstein achieved a historic breakthrough in light and heat cooling in 1995, the refrigeration system has the unique advantages of being all-optical and has the advantages of no vibration and no noise, no electromagnetic radiation, small size and light weight , High reliability, anti-Stokes fluorescent refrigerator in the military, space satellite, microelectronics, low temperature physics and engineering and other fields with very attractive prospect. Firstly, the development history, research status and development of laser refrigeration are introduced. Secondly, the basic laws of thermodynamics are used to analyze the relationship between energy conversion and conversion depth in anti-Stokes fluorescent refrigeration process. The calculation formula of the maximum thermodynamic efficiency of a process provides the upper limit of the thermodynamic limit for the design of the laser cooler. Finally, the application prospects and problems of the laser refrigeration are analyzed