华东师范大学学报（自然科学版）Issue(3)：72-79,8.DOI:10.3969/j.issn.1000-5641.2025.03.009
基于Yb3+:LuLiF4晶体的低温光学制冷器的热链接设计与分析
Design and analysis of thermal link for cryogenic optical cooler based on Yb3+:LuLiF4 crystal
摘要
Abstract
As a novel cryocooler,a cryogenic optical refrigerator utilizing an anti-Stokes fluorescence process provides cooling power to a payload.Cryogenic optical refrigerators exhibit a compact structure,wide temperature range,and non-vibration.Hence,they are promising for applications in space technology,defense,and precision measurement.In this study,the principle prototype of a cryogenic optical refrigerator is introduced based on a cooling-grade Yb3+:LuLiF4 crystal.Furthermore,the fluorescence escape coefficient and thermal loads of a heat link in an optical refrigerator is analyzed.Various heat link structures are designed,the fluorescence transmission process in these heat links is simulated using an optical simulation software,and the fluorescence escape coefficients of the different structures are determined based on the ray tracing results.The thermal loads of the heat link in the optical refrigerator are analyzed,and the thermal loads of the refrigerator with different angles of D-type bending structure heat links at low temperatures are calculated.The most suitable heat-link structure for cryogenic optical refrigerators is identified by optimizing the fluorescence escape coefficient and thermal loads of the heat link.The heat link design proposed in this study provides a good solution for high-efficiency cryogenic optical coolers.关键词
固体材料激光冷却/低温光学制冷器/热负载/荧光分析Key words
laser cooling of solid materials/cryogenic optical coolers/thermal load/fluorescence analysis分类
物理学引用本文复制引用
张子恒,钟标,王朝玉,徐家金,张佳宜,潘宸乐,印建平..基于Yb3+:LuLiF4晶体的低温光学制冷器的热链接设计与分析[J].华东师范大学学报（自然科学版）,2025,(3):72-79,8.基金项目
国家自然科学基金(11604100,11834003,61574056,91536218,11874151) （11604100,11834003,61574056,91536218,11874151）
中国博士后自然科学基金特别资助项目(2016T90346) （2016T90346）
