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双折射材料的温度修正 Birefringent Material Temperature Modification [8^q3o7n 9^ZtbmUf 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: mL pM8~L yW(|auq 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline R^$|D)( r uGeN 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline R"9wVM;*c as|w} $ 3.Loop over the baseline material samples and determine the number of wavelength entries b0YEIV<$ 6o7t eX 4.Loop over each sampled wavelength entry in the baseline material E_aBDiyDf 6[4VbIBSI a.Modify the ordinary and extraordinary refractive index values using (2) above 2jC` '8 ~r!(V;k{ b.Apply the modified values to the non-baseline material mHHlm<?]
q:TNf\/o 5.Set a description on the non-baseline material indicating the temperature change from baseline *;]}`r L/r_MtN 脚本编程及GUI例程请下载链接: qSB&Q0T <K`E*IaW http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs uBa<5YDF [)1vKaC http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 3_Xu3hNH!
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