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双折射材料的温度修正 Birefringent Material Temperature Modification On);SN' R,D/:k'~k 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: yam'LF
$Z&6 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline <IR@/b!, =Jl\^u%H(x 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline &H# l* Ds]
.Ae 3.Loop over the baseline material samples and determine the number of wavelength entries mL1ZSX
o! %u%;L+0Q[ 4.Loop over each sampled wavelength entry in the baseline material Aa1#Ew<r _\4r~=`HQ a.Modify the ordinary and extraordinary refractive index values using (2) above 3SWDPy !"phz&E5ah b.Apply the modified values to the non-baseline material u*l>)_HD
'*Y mYU 5.Set a description on the non-baseline material indicating the temperature change from baseline \|X
1 w#9.U7@. 脚本编程及GUI例程请下载链接: D`n<!"xg@$ wa[J\lW http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 1Mq"f7X8
;Uch http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ~jKIuO/ q#Otp\f 5Zc QQ:2987619807 hK4ww"-
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