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双折射材料的温度修正 Birefringent Material Temperature Modification PoPR34]^J GQ7uxdqWBQ 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: #ye`vD rVl 8?uy 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline *vuI'EbM N!3Tg564j 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline (=Kv1
H aD -eyF9++` 3.Loop over the baseline material samples and determine the number of wavelength entries &0-oi Y "NGfT:HV 4.Loop over each sampled wavelength entry in the baseline material >V27#L2:J /W BmR R a.Modify the ordinary and extraordinary refractive index values using (2) above !U m9ceK 6uFw+Ya#
b.Apply the modified values to the non-baseline material 83t/\x,Q /o 'lGvw 5.Set a description on the non-baseline material indicating the temperature change from baseline aK@
Y) Ju' Z_m<x! 脚本编程及GUI例程请下载链接: !3Pmjip ?u@jedQ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Rk3
bZvj3 /[\g8U{5B} http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd }P.Z}n;Uj
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