Identification of parasitic losses in Yb:YLF and prospects for optical refrigeration down to 80K.
Identification of parasitic losses in Yb:YLF and prospects for optical refrigeration down to 80K.
复制标题
DOI：
10.1364/oe.22.007756
复制
发表时间：
2014-04
期刊：
影响因子：
3.8
通讯作者：
S. Melgaard;D. Seletskiy;V. Polyak;Y. Asmerom;M. Sheik-Bahae
中科院分区：
文献类型：
--
作者：
S. Melgaard;D. Seletskiy;V. Polyak;Y. Asmerom;M. Sheik-Bahae
通过光学和质谱对Yb：YLF制冷机中Yb掺杂浓度的系统研究，确定了铁离子是背景吸收的主要来源。观察到随着Yb掺杂的减少，寄生吸收减少，导致10%Yb：YLF样品的光学冷却至114K ± 1K，室温冷却功率为750mW，计算的最低可实现温度为93K。
Systematic study of Yb doping concentration in the Yb:YLF cryocoolers by means of optical and mass spectroscopies has identified iron ions as the main source of the background absorption. Parasitic absorption was observed to decrease with Yb doping, resulting in optical cooling of a 10% Yb:YLF sample to 114K ± 1K, with room temperature cooling power of 750 mW and calculated minimum achievable temperature of 93 K.