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双折射材料的温度修正 Birefringent Material Temperature Modification AF{uFna : x&R'wX- 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: }h45j84) c#{lXS^ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline vY m:V:7Y2 IRm}?hHf 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline :$b` n @c]KHWI 3.Loop over the baseline material samples and determine the number of wavelength entries 0NU%z.(%s Yvo*^jv 4.Loop over each sampled wavelength entry in the baseline material 1 Q(KZI -a)1L'R a.Modify the ordinary and extraordinary refractive index values using (2) above Lxp}o7>K Pl:4`oY3 b.Apply the modified values to the non-baseline material _HHvL= SPb+H19; 5.Set a description on the non-baseline material indicating the temperature change from baseline mBErU6?X,A i#*[,
P~ 脚本编程及GUI例程请下载链接: $WIVCp GB|>eZLv< http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ~ps,U R BHDfm'~7 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd U_*,XLU
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