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双折射材料的温度修正 Birefringent Material Temperature Modification r[P5
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% 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: {fsU(Jj\ MMs#Y1dH 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline yGN@Hd:9 U1&pcwP 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline "^A4 !. &<</[h/B/F 3.Loop over the baseline material samples and determine the number of wavelength entries 2l43/aCq uo`O$k<; 4.Loop over each sampled wavelength entry in the baseline material #&+0hS R(dVE\u a.Modify the ordinary and extraordinary refractive index values using (2) above FU-YI" rDNz<{evj b.Apply the modified values to the non-baseline material Wb! "L`m -eKi}e 5.Set a description on the non-baseline material indicating the temperature change from baseline :r^c_Ui )9sRDNr 脚本编程及GUI例程请下载链接: ~GL"s6C$`; G\8ps~3T http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs (<?6X9F:N $+` YP http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ["|' f #BQ7rF7CNE cU\Er{
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