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双折射材料的温度修正 Birefringent Material Temperature Modification }WA= dEhFuNO<2 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: |C"zK G$^u2wz. 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 9bQD"%ha=d &wX568o 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline D03QisH= B:>>D/O 3.Loop over the baseline material samples and determine the number of wavelength entries s||c#+j"8 mz2 v2ma 4.Loop over each sampled wavelength entry in the baseline material O:]e4r,' S`Xx('!/| a.Modify the ordinary and extraordinary refractive index values using (2) above b$eN]L ^, &' b.Apply the modified values to the non-baseline material Akdx1h, c(kYCVc 5.Set a description on the non-baseline material indicating the temperature change from baseline h+c9FN z j F'CY 脚本编程及GUI例程请下载链接: 8U%y[2sT ,rNv} http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs *`_2uBz S l`F` http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd o
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