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双折射材料的温度修正 Birefringent Material Temperature Modification B<5R eD,.~Y#?= 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: EK{Eo9l ]<ldWL 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline t|g4m[kr tXNm$Cq.| 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline wH>a~C: Gr*r=s 3.Loop over the baseline material samples and determine the number of wavelength entries J1( 9QN[w 7%5z p|3 4.Loop over each sampled wavelength entry in the baseline material wjHzE
ck:T,F{} a.Modify the ordinary and extraordinary refractive index values using (2) above \H1(PA ;&9)I8Us b.Apply the modified values to the non-baseline material ,]bhy p Sdp&jZY 5.Set a description on the non-baseline material indicating the temperature change from baseline T1 ut"Zu 6 eLR2 脚本编程及GUI例程请下载链接: &v56#lG dMh:ulIY> http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ,)0H3t ;Y00TGU http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd i6^twK)j v[
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