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Temperature-dependent refractive index of potassium acid phthalate (KAP) in the visible and near-infrared

机译:可见和近红外中邻苯二甲酸钾酸钾(KAP)的温度依赖性折射率

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摘要

We report an investigation of the temperature-dependence of the refractive index of potassium acid phthalate (KAP) crystal. Refractive index measurements are based on a refractometer setup operating in a temperature range from 25 ℃to 200 ℃ and using five different laser wavelengths in the visible and near-infrared. Temperature-dependent dispersion relations are proposed, with an average fitting quality that exceeds experimental accuracy, and compared to previous room-temperature Sellmeier equations. Consequently, the new relations are employed for the calculation of various linear and nonlinear optical properties of KAP.
机译:我们报告调查的温度依赖性的邻苯二甲酸钾酸钾(KAP)晶体的折射率。折光率的测量是基于在25℃至200℃的温度范围内运行的折光仪设置,并在可见光和近红外光中使用五种不同的激光波长。提出了温度相关的色散关系,其平均拟合质量超过了实验精度,并与以前的室温Sellmeier方程进行了比较。因此,新关系被用于计算KAP的各种线性和非线性光学性质。

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