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双折射材料的温度修正 Birefringent Material Temperature Modification PR=:3-#R /238pg~Cw5 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: sw{,l"]< \TSt 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline +2!J 3{[J 0S <;T+WA 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline ;/#E!Ja/u N"MuAUB:K 3.Loop over the baseline material samples and determine the number of wavelength entries 4:-h\% 5K13 4.Loop over each sampled wavelength entry in the baseline material ZcgSVMqEX (3`Q`o; a.Modify the ordinary and extraordinary refractive index values using (2) above "h'0&ZP~_ jZu">Eh, b.Apply the modified values to the non-baseline material 5inmFT?9Z w4U]lg<}E 5.Set a description on the non-baseline material indicating the temperature change from baseline /NCEZ@2BN, 0lR/6CB 脚本编程及GUI例程请下载链接: l$D]*_ jc, .8hB <G http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 3+_? /}< 2'_xg~ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ab8uY.j
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