光学与光电技术, 2017, 15 (3): 91, 网络出版: 2017-07-10
Ho3+,Tm3+∶LuLiF4晶体反斯托克斯荧光谱对光学制冷的加强
Effect of the Anti-Stokes Fluorescence Spectrum of Ho3+,Tm3+∶LuLiF4 Crystal on Optical Cooling
光学制冷 反斯托克斯 荧光光谱 能量传递 LuLiF4晶体 Ho3+掺杂 optical cooling anti-stocks the fluorescence spectrum energy transform the LuLiF4 crystal Ho3+ doped
摘要
为了研究Ho3+,Tm3+共掺引起的能量传递效应对光学制冷效果的加强作用,采用中心波长为2 069 nm的π偏振激光负调谐泵浦Ho3+∶LuLiF4晶体和Ho3+,Tm3+∶LuLiF4晶体,通过收集负泵浦产生的荧光,并分析计算得出Tm3+,Ho3+共掺晶体较单掺Ho3+的晶体光学制冷中效率提高3.47倍,Ho3+,Tm3+共掺晶体的能量传递作用对光学制冷效率有一定的加强作用。
Abstract
In order to research the effect of the co-doped Ho3+,Tm3+ crystal energy transform on optical cooling, an experiment of negative tuning pump is tested. The center wavelength of 2 069 nm π-polarization has been used to pump the Ho3+:LuLiF4 crystal and the Ho3+,Tm3+:LuLiF4 crystal. The fluorescence of the crystal has been collected. By comparing the fluorescence of the Ho3+:LuLiF4 crystal and the Ho3+,Tm3+:LuLiF4 crystal, the consequence of the co-doped crystal optical cooling effect being larger than 3.47 of single-doped crystal is obtained. The result of energy transform effect enhancing the optical cooling is acquired.
余龙, 高彦伟. Ho3+,Tm3+∶LuLiF4晶体反斯托克斯荧光谱对光学制冷的加强[J]. 光学与光电技术, 2017, 15(3): 91. YU Long, GAO Yan-wei. Effect of the Anti-Stokes Fluorescence Spectrum of Ho3+,Tm3+∶LuLiF4 Crystal on Optical Cooling[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2017, 15(3): 91.
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