Heeg Bauke, DeBarber Peter A, Rumbles Garry
MetroLaser, Incorporated, Irvine, California 92614, USA.
Appl Opt. 2005 May 20;44(15):3117-24. doi: 10.1364/ao.44.003117.
We analyze the random process of fluorescence reabsorption and trapping in solid-state optical materials in general and its influence on the efficiency of optical cooling of solids by anti-Stokes fluorescence in particular. Using the absorption and fluorescence spectra of Yb3+:ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) as input data, we employ a random-walk model to test analytical approximations of the fluorescence escape efficiency and cooling efficiency, including reflections at the boundary.
我们总体上分析了固态光学材料中荧光再吸收和俘获的随机过程，特别是其对通过反斯托克斯荧光实现固体光学冷却效率的影响。以Yb3+:ZrF4-BaF2-LaF3-AlF3-NaF（ZBLAN）的吸收光谱和荧光光谱作为输入数据，我们采用随机游走模型来检验荧光逃逸效率和冷却效率的解析近似，包括边界处的反射。
