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双折射材料的温度修正 Birefringent Material Temperature Modification x@{G(W:W =; ~%L 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: hNu>s F'$9en2I: 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline
z*??YUT\M qat45O4A1 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline q/W{PBb-2k L%c]%3A 3.Loop over the baseline material samples and determine the number of wavelength entries @m !9"QhC [TiTff&LV 4.Loop over each sampled wavelength entry in the baseline material pgLzFY[' T! &[ a.Modify the ordinary and extraordinary refractive index values using (2) above |r)>bY7 3{N p 9y. b.Apply the modified values to the non-baseline material 6xDl=*&% sRo<4U0M;l 5.Set a description on the non-baseline material indicating the temperature change from baseline ,d9%Ce.$2 =]5DYRhX] 脚本编程及GUI例程请下载链接: lOowMlf@2 ?{ 8sT-Z-L http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 'O\d<F.c$2 #z-iL!? http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd r{Qs9 W<cW;mO
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