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双折射材料的温度修正 Birefringent Material Temperature Modification y*}AX%8`e~ ftO+.-sm< 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: TG4\%S$w m
&9)'o 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline MhHr*!N"} l?})_1v,R 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline }PtI0mZ1
A(q~{ 3.Loop over the baseline material samples and determine the number of wavelength entries I%pCm||p ;>inT7?3| 4.Loop over each sampled wavelength entry in the baseline material iPA@<D% Bh\
[CY a.Modify the ordinary and extraordinary refractive index values using (2) above {'h)
6].yRNy" b.Apply the modified values to the non-baseline material #x, ]D 5OPS&: 5.Set a description on the non-baseline material indicating the temperature change from baseline sXSj OUI pZc9q8j3 脚本编程及GUI例程请下载链接: 2dv|6p +A'}PXm*tu http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 0\V\qAk eA~J4k_ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd bq c;.4$
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