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双折射材料的温度修正 Birefringent Material Temperature Modification d0 8:lYQ J|DY
/v 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: LDj*~\vsq nRheByYm 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 'E4}++\ B[r04YGh 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline '~AR|8q? g
?{o2gG 3.Loop over the baseline material samples and determine the number of wavelength entries ??,/85lM J,t`ilT 4.Loop over each sampled wavelength entry in the baseline material A%.ZesjAx \y+@mJWa a.Modify the ordinary and extraordinary refractive index values using (2) above VH<-||X/4 K8fC>iNbH b.Apply the modified values to the non-baseline material MD[;Ha nYy+5u]FG 5.Set a description on the non-baseline material indicating the temperature change from baseline lZ?YyRsa6& o}y(T07n 脚本编程及GUI例程请下载链接: 4Xe8j55 75H;6(7 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs SX[ X>U _v http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd M^.>UZKyl
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