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双折射材料的温度修正 Birefringent Material Temperature Modification *A9{H>Vq {3uSg) 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: ZV^J5wYE )Is*-
W 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline Wn#JYp t-'GRme 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline m%(JRh nMvIL2:3 3.Loop over the baseline material samples and determine the number of wavelength entries \ozy_s[ p00Bgo 4.Loop over each sampled wavelength entry in the baseline material U8Jj(]},_ tU2;Wb!Y a.Modify the ordinary and extraordinary refractive index values using (2) above y#0Z[[I0 j1CD;9i)% b.Apply the modified values to the non-baseline material D>^ix[:J G[-jZ 5.Set a description on the non-baseline material indicating the temperature change from baseline "J:NW_U <%f%e4
[ 脚本编程及GUI例程请下载链接: eQIi}\` Kqu7DZ+W http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Kd1\D!#!6 )Bvu[rUy http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd !D5`8
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