Tm^(3+)掺杂光纤激光制冷的理论分析  

Theoretical analysis of laser cooling of Tm^(3+)-doped fiber

作　　者：孙海生[1] 贾佑华[1] 纪宪明[1] 印建平[1] 

机构地区：[1]华东师范大学物理系

出　　处：《物理学报》2006年第6期3112-3118,共7页Acta Physica Sinica

基　　金：教育部高等学校博士学科点专项科研基金(批准号:20040269010);上海市重点学科基金资助;教育部211工程专项基金资助的课题~~

摘　　要：近年来,掺Tm3+:ZBLANP玻璃已成为固体材料激光冷却领域中最有希望的新材料之一,但有关掺Tm3+:ZBLANP光纤的激光冷却尚未见到理论研究与实验报道.本文采用一个简单的理论模型,就Tm3+:ZBLANP光纤的激光冷却进行了理论研究与分析,讨论了量子效率、抽运功率、背景吸收、出射荧光波长变化和环境黑体辐射等对激光制冷效果的影响,得到了一些有趣的重要结果,可为掺Tm3+:ZBLANP光纤的激光冷却实验提供可靠的理论依据.In recent years, thulium-doped fluorozirconate （ZBLANP） glass has become one of the promising materials in the field of the laser cooling of solids. However, up to date, the theoretical studies on the laser cooling of the Tm^3 ＋ ： ZBLANP fiber and their experimental results have not been reported. In this paper, we have developed a simple theoretical model to discuss some basic problems in the laser cooling of solids. The influences of the fluorescent quantum efficiency, the pump power, the change of fluorescence wavelength and the black-body radiation on the laser cooling effect for the Tm^3＋ ： ZBLANP fiber are discussed in some detail, and some interesting and important results are obtained. These results will provide the reliable theoretical basis for further experimental study on the laser cooling of the Tm^3＋ ：ZBLANP fiber.

关 键 词：固体激光冷却 反斯托克斯荧光 掺Tm^3+:ZBLANP光纤 

分 类 号：TN249[电子电信—物理电子学]