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双折射材料的温度修正 Birefringent Material Temperature Modification r>N5^ yM%,*VZ 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: 9/OB!<*V| ;H5H7ezV 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 30 VvZb ^
q]BCOfJ( 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline -DwqoWZ V\8vJ3.YV 3.Loop over the baseline material samples and determine the number of wavelength entries ,bRvj8"M .W{\wkn 4.Loop over each sampled wavelength entry in the baseline material SRq0y,d |r"1
&ow5 a.Modify the ordinary and extraordinary refractive index values using (2) above RsJj*REO /esSM~*H b.Apply the modified values to the non-baseline material {s} @$rW *bu/Ko] 5.Set a description on the non-baseline material indicating the temperature change from baseline *S.R#4w * iW>i^ 脚本编程及GUI例程请下载链接: +:4J~Cuf ,?;q$Xoi http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ($^XF: #5 g_Wf3o857J http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd g+gHIb7{
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