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双折射材料的温度修正 Birefringent Material Temperature Modification (9!kKMQW' Y1 6pT 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: l78:. s9Bd mD^|# 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline /S%!{;: Ht%O9v 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline ^4>Icz^ F ZRCUM"R_ 3.Loop over the baseline material samples and determine the number of wavelength entries KnYHjJa jp-]];:aPJ 4.Loop over each sampled wavelength entry in the baseline material `O}bPwa{> ,9/s`o a.Modify the ordinary and extraordinary refractive index values using (2) above Y^uYc} < nyk:E b.Apply the modified values to the non-baseline material r7N%onx >Y&o2zJy 5.Set a description on the non-baseline material indicating the temperature change from baseline SP5t=#M6 u2Qs}FX 脚本编程及GUI例程请下载链接: O}"fhMk XBHv V05mv http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs AmT*{Fz8 2N_9S?a3sK http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ,5Tw5<S
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