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双折射材料的温度修正 Birefringent Material Temperature Modification MKf|(6;~ 2Tec#eYe 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: (~q.YJ' -K eoq 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline dWqKt0uh! mvgsf(a*' 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline d,8L-pT$FM ZP~Mgz{f 3.Loop over the baseline material samples and determine the number of wavelength entries #s>AiD KSDz3qe 4.Loop over each sampled wavelength entry in the baseline material Q6)Wh6Cm +O"!* a.Modify the ordinary and extraordinary refractive index values using (2) above _N)/X|=~s ndg1E;> b.Apply the modified values to the non-baseline material VzD LG LH H1>~,zc>E 5.Set a description on the non-baseline material indicating the temperature change from baseline (KxI* A0X'|4I 脚本编程及GUI例程请下载链接: G\&9.@`k ~wYGTm=(n http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs nilis-Bk_ E+z),"QA http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 7>.d*?eao\ ^/]w}C#:d 2iM]t&^<+ QQ:2987619807 ,+2!&"zD
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