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双折射材料的温度修正 Birefringent Material Temperature Modification Z+y'w#MZL G6a 2] 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: Os$E,4,py !"qT2<A 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline dX)aD
$m aH uMm& 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline *w(n%f RVwS<g)~1 3.Loop over the baseline material samples and determine the number of wavelength entries n8; p]{ 4>V@+#Ec5 4.Loop over each sampled wavelength entry in the baseline material ?<3 d
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p:| a.Modify the ordinary and extraordinary refractive index values using (2) above ^-q{:lx pIC'nO_ b.Apply the modified values to the non-baseline material 7,p.M)t) )2Sh oFF 5.Set a description on the non-baseline material indicating the temperature change from baseline AP,ZMpw Cfmd*, 脚本编程及GUI例程请下载链接: xJ{r9~ [>a3` 0M http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 5Z; 5?\g LJPJENtFIs http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd TaYl[I 2yn"K| {v]L|e%{ QQ:2987619807 B<r0y
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