Departamento de Física, Universidade Estadual de Maringá, Maringá, Paraná 87020-900, Brazil.
Opt Lett. 2013 Feb 15;38(4):422-4. doi: 10.1364/OL.38.000422.
We report a theoretical model and experimental results for laser-induced lensing in solids. The model distinguishes and quantifies the contributions from population and thermal effects. Laser-induced lensing in ytterbium-doped fluorozirconate glass ZBLAN:Yb(3+) is measured, and the thermal and optical properties obtained from analyzing the data with the proposed model agree well with published values. Photothermal techniques are used extensively for the investigation of laser and laser-cooling materials, and the model developed here enables the interpretation of convoluted laser-induced lensing signals that have contributions from different sources.
我们报告了一种用于固体中激光诱导透镜的理论模型和实验结果。该模型区分并量化了来自粒子数反转和热效应的贡献。我们测量了掺镱氟锆酸盐玻璃 ZBLAN:Yb(3+)中的激光诱导透镜，并通过用所提出的模型分析数据获得了热和光学性质，这些性质与已发表的值吻合良好。光热技术广泛用于激光和激光冷却材料的研究，这里开发的模型使我们能够解释具有不同来源贡献的复杂激光诱导透镜信号。
