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双折射材料的温度修正 Birefringent Material Temperature Modification )%e`SGmp FGzMbi<l#( 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: # fvt:iE [UqJ3@> 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline )m .KV5K! q'u^v PO 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 0<3)K[m~H &%."$rC/0b 3.Loop over the baseline material samples and determine the number of wavelength entries lCmTm 3N8RZt1.b 4.Loop over each sampled wavelength entry in the baseline material UA@(D F/ BB]gUB a.Modify the ordinary and extraordinary refractive index values using (2) above 7g'jg7 }A@op+0E b.Apply the modified values to the non-baseline material q'r(#,B<3 )HPt(Ck 5.Set a description on the non-baseline material indicating the temperature change from baseline ?f{{{0$S obYXDj2 脚本编程及GUI例程请下载链接: <=m@Sg{o X%iiz http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Hggp*(AQK BEn,py7 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd )2
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