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双折射材料的温度修正 Birefringent Material Temperature Modification y<n<uZ; <PXnR\ 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: `zMR?F` 7G9o%!D5 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline T.iVY5^< G,A;`:/ 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline M;1B}x@ H"%SzU 3.Loop over the baseline material samples and determine the number of wavelength entries ,v>|Ub, ~VaO,8&+L 4.Loop over each sampled wavelength entry in the baseline material c9axzg
UA +u'y!@VV a.Modify the ordinary and extraordinary refractive index values using (2) above ~OOD#/ =B tmi b.Apply the modified values to the non-baseline material S}XVr?l2O lr&O@
5"oy 5.Set a description on the non-baseline material indicating the temperature change from baseline R9O[`~BA2 s+E-M=d0e 脚本编程及GUI例程请下载链接: -
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@"@kbr http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs e?eX9yA7F .GNl31f0 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 50^T\u lO dwH" /d]{ #,k QQ:2987619807 t/0h)mL}
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