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双折射材料的温度修正 Birefringent Material Temperature Modification O`@Nl -Q n-w3~& 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: !q2zuxq!R ( V4Ppg 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline |SkQe[t Keh=>K)T 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline EB[T 5{ u}iuf_ 3.Loop over the baseline material samples and determine the number of wavelength entries ..}P$ 9r? Z'~,Za 4.Loop over each sampled wavelength entry in the baseline material <l<O2 l /}m)FaAi a.Modify the ordinary and extraordinary refractive index values using (2) above 4-yK!LR L!cOg8Z b.Apply the modified values to the non-baseline material KR>)Ek Z=]SAK` 5.Set a description on the non-baseline material indicating the temperature change from baseline <,M"kF: PFJ$Ia| 脚本编程及GUI例程请下载链接: +HS]kF H J# (AX6 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs gHe:o` gK rUv0&F http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 7_I83$p'
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