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双折射材料的温度修正 Birefringent Material Temperature Modification D%=&euB v[?gM.SF 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: `wSoa#U"@ #W8c)gkG9 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline F>E_d<m Z+4Mo*# 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline FRQkD%k D>`{f4Y 3.Loop over the baseline material samples and determine the number of wavelength entries %f(4jQ0I 1k"i"kRM 4.Loop over each sampled wavelength entry in the baseline material h,K&R8S cvx"XxE, a.Modify the ordinary and extraordinary refractive index values using (2) above '%YTMN@ R1.Yx? b.Apply the modified values to the non-baseline material "g(q)u > s"8z q;) 5.Set a description on the non-baseline material indicating the temperature change from baseline OSom-?|w :JXcs39 脚本编程及GUI例程请下载链接: v~p?YYOm< +RK/u http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs TBHd)BhI. DnN+W http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd "#{b)!EH
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