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双折射材料的温度修正 Birefringent Material Temperature Modification [_Y\TdR 7$'%*|C. 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: ]0.? 1s e gP1~N^hke] 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 'CsD[< DesvnV'{`
2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline [R-4e; SRh F@4XORO; 3.Loop over the baseline material samples and determine the number of wavelength entries ?#ue:O1 2KMLpO&De 4.Loop over each sampled wavelength entry in the baseline material 1BUdl=o>S <n< @
O5 a.Modify the ordinary and extraordinary refractive index values using (2) above ~,KAJ7O_ f~-81ctu b.Apply the modified values to the non-baseline material tJo,^fdfv LivPk`[ 5.Set a description on the non-baseline material indicating the temperature change from baseline saQA:W; tmiRv.Mhn< 脚本编程及GUI例程请下载链接: <T{2a\i 4f z.n`0`^ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Ac!,#Fq eYBo* http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd N#'+p5|>
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