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双折射材料的温度修正 Birefringent Material Temperature Modification prdc}~J8{ id?B<OM 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: ?cB:1?\j Iq?#kV9) 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline wCitQ0? .7K<9K +P 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 6Trtulm a5dc#f
Kf 3.Loop over the baseline material samples and determine the number of wavelength entries E9bc pup sX
c|++ 4.Loop over each sampled wavelength entry in the baseline material J$>9UCk7B r7zS4;b a.Modify the ordinary and extraordinary refractive index values using (2) above >qL-a*w:a tb1w 6jaU b.Apply the modified values to the non-baseline material vU9j|z eh6\y79g 5.Set a description on the non-baseline material indicating the temperature change from baseline oro^'#ki *dpKo&y 脚本编程及GUI例程请下载链接: -tH ^Deo %+bw2;a6 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs pIhy3@bY S)\Yc=~h http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd S2\|bs7;J, T!YfCw.HZ 8h '~* QQ:2987619807 KB5<)[bs
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