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双折射材料的温度修正 Birefringent Material Temperature Modification 9(DS"fgC >4`("# 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: ~YKe:K+&z 1GKd*z 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline e5_a.c cS/\&%7u 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline DVt;I$ 5v"QKI 3.Loop over the baseline material samples and determine the number of wavelength entries xtYX}u E&P'@'Yk 4.Loop over each sampled wavelength entry in the baseline material m8;;
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G+)$P a.Modify the ordinary and extraordinary refractive index values using (2) above UVlD]oXKh 7N,E%$QL b.Apply the modified values to the non-baseline material I}Uj"m`>
fy" q 5.Set a description on the non-baseline material indicating the temperature change from baseline DZ -5A X&fM36o7 脚本编程及GUI例程请下载链接: 2{Nv&ZX? z^+f3-Z http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ;75K:_ Aq%TZ_m http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ec+&K?T
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