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双折射材料的温度修正 Birefringent Material Temperature Modification 6W7,EIf &hi][Pt 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: QfM^J5j.M? rq1~%S 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 6& hiW]Adm 8{{^pW?x
2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline <5CQ#^cK vp d!|/ 3.Loop over the baseline material samples and determine the number of wavelength entries kI5LG6 <Nc9F[' 4.Loop over each sampled wavelength entry in the baseline material `ZP[-: ` ]^{5` a.Modify the ordinary and extraordinary refractive index values using (2) above KVViTpZ 4"{g{8 b.Apply the modified values to the non-baseline material ?V_v=X%w 73tjDO7d 5.Set a description on the non-baseline material indicating the temperature change from baseline @cm[]]f'l /jq"r-S" 脚本编程及GUI例程请下载链接: Qt^6w}& 9jl\H6JY| http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs I>-}ys`[ |BGzdBm^x: http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd c]z^(:_>
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