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双折射材料的温度修正 Birefringent Material Temperature Modification F&&$Qn_+ L'u\w 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: qAw x2fPu }Hn/I,/ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline Q=]w !I\ Y.*y9)#S6 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline k1QpKn* YCP) %} 3.Loop over the baseline material samples and determine the number of wavelength entries *8LMn g1jTy7g? 4.Loop over each sampled wavelength entry in the baseline material t+eVR8 () j=5KDu a.Modify the ordinary and extraordinary refractive index values using (2) above 3+XOZh8 y3h/IpT b.Apply the modified values to the non-baseline material ';<0/U aoXb2 2]{ 5.Set a description on the non-baseline material indicating the temperature change from baseline eM+!Y>8Y t25,0<iW 脚本编程及GUI例程请下载链接: 3g >B"t &uO%_6J http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs )a-Du$kd 92 [;Y http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd m@^1JlH
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