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双折射材料的温度修正 Birefringent Material Temperature Modification $B<:SuV# RL\?i~'KH 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: n'q:L(`M ;!=i|"PG 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline f[R~oc5P0 5D<ZtsXE 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline x@/:{B y3j"vKG 3.Loop over the baseline material samples and determine the number of wavelength entries f9<" ^A=tk!C 4.Loop over each sampled wavelength entry in the baseline material <I2ENo5? %,<Ki]F a.Modify the ordinary and extraordinary refractive index values using (2) above mvTp,^1 Z1v~tqx b.Apply the modified values to the non-baseline material E^c*x^ 9;\mq'v% 5.Set a description on the non-baseline material indicating the temperature change from baseline
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7l>(3 AOKC1iD%Y 脚本编程及GUI例程请下载链接: 8HZ+r/j %QGw`E http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs q
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zp"CK 5 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd Px*<-t|R-
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