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双折射材料的温度修正 Birefringent Material Temperature Modification 8vj]S5 D&6.> wt
. 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: Q:]v4/MT y)7;"3Q< 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline ciN*gwI) QD
0p 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline R1/mzPG G.^^zmsM` 3.Loop over the baseline material samples and determine the number of wavelength entries ~S0T+4$ :x!'Eer
n 4.Loop over each sampled wavelength entry in the baseline material .0dx@Sbv i>=y3x" a.Modify the ordinary and extraordinary refractive index values using (2) above yq` ,) )2F%^<gZ# b.Apply the modified values to the non-baseline material 7[M@;$ :eSwXDy& 5.Set a description on the non-baseline material indicating the temperature change from baseline f%%'M.is %,udZyO3uR 脚本编程及GUI例程请下载链接: py\/m] ` yM9XjEl> http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs "ZG2olOqLI @nM+*0
$d http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd e?e oy|
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