Materials for Optical Cryocoolers
Materials for Optical Cryocoolers
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DOI：
10.1039/c3tc31681e
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发表时间：
2013-10
影响因子：
6.4
通讯作者：
M. Hehlen;M. Sheik-Bahae;R. Epstein;S. Melgaard;D. Seletskiy
中科院分区：
文献类型：
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作者：
M. Hehlen;M. Sheik-Bahae;R. Epstein;S. Melgaard;D. Seletskiy
将探测器无振动冷却至低温对于许多地面、机载和天基仪器至关重要。通过反斯托克斯荧光冷却固体是一种新兴的制冷技术，其固有的无振动和紧凑，并且能够将小负载冷却到低温温度。在这篇文章中，讨论了激光冷却固体的进展，特别关注最近突破性的激光冷却掺Yb3+的YLiF4晶体到114 K。强调了激光制冷材料的结构、成分和纯度的重要性及其对光制冷器件性能的影响。
Vibration-free cooling of detectors to cryogenic temperatures is critical for many terrestrial, airborne, and space-based instruments. Cooling of solids by anti-Stokes fluorescence is an emerging refrigeration technology that is inherently vibration-free and compact, and enables cooling of small loads to cryogenic temperatures. In this Highlight, advances in laser-cooling of solids are discussed with a particular focus on the recent breakthrough laser cooling of Yb3+-doped YLiF4 crystals to 114 K. The importance of the material structure, composition, and purity of laser-cooling materials and their influence on the optical refrigerator device performance is emphasized.