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双折射材料的温度修正 Birefringent Material Temperature Modification -Z"4W uw}Rr7q 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: ?l0Qi $v|W2k 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline D(AH3`*|# 8b2 =n 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 1`&`y%c?B faDSyBLo 3.Loop over the baseline material samples and determine the number of wavelength entries d#g))f; &0F' Ca 4.Loop over each sampled wavelength entry in the baseline material 08`|C)Z! u5(8k_7 a.Modify the ordinary and extraordinary refractive index values using (2) above wGc7 }Y~Dk]* b.Apply the modified values to the non-baseline material x#>V50E c{1;x)L 5.Set a description on the non-baseline material indicating the temperature change from baseline K3yQ0k
| 7zb^Z] 脚本编程及GUI例程请下载链接: fK J-/{| 8D='N`cN+ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ZSC*{dD$E
P8tdT3*6/ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 6>a6;[
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