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双折射材料的温度修正 Birefringent Material Temperature Modification P>W8V+l![ Cyf]`* 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: <2)v9c 7'UWRRsxUF 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline Ar5JP_M`E a71}y;W 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline )"~=7)~<^ 4K #^dJnC 3.Loop over the baseline material samples and determine the number of wavelength entries Y[,U_GX/R 8;.` {'r 4.Loop over each sampled wavelength entry in the baseline material !F,s" +V89J!7 a.Modify the ordinary and extraordinary refractive index values using (2) above k>-'AWH^v u]#8$M2 b.Apply the modified values to the non-baseline material B>aEHb 6#-Z@fz% 5.Set a description on the non-baseline material indicating the temperature change from baseline .-%oDuB5zF v1K4 $&{F 脚本编程及GUI例程请下载链接: #VR`?n?, w6v1 q:20 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs `#<eA*^g5 /0!$p[cjm http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd WiwwCKjSa
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