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双折射材料的温度修正 Birefringent Material Temperature Modification %s]l^RZ /xK5%cE>B 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: Yl65|=ne k+(UpO=/* 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 1[QH68
T?!&a0 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline h6!o,qw" j Hd <* 3.Loop over the baseline material samples and determine the number of wavelength entries Ri,8rf0u /}~;
b#t 4.Loop over each sampled wavelength entry in the baseline material T<p,KqH {{FA"NW a.Modify the ordinary and extraordinary refractive index values using (2) above Ek!$Ary 2>s@2=Aq b.Apply the modified values to the non-baseline material 1' #%UA ? WD|a( 5.Set a description on the non-baseline material indicating the temperature change from baseline Cm4$&? NNWbbU3wjh 脚本编程及GUI例程请下载链接: 8}Pd- .se |+?ABPk" http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs s+"[S% HJY_l http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 69Y>iPRU Y(>]7 7\'ow|)}v QQ:2987619807 6B4s6
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