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双折射材料的温度修正 Birefringent Material Temperature Modification WM& k e-$U .cx 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: Vb${Oy+ b`x7%?Qn 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline . '3&!#3 PUMh#^g} 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline w]Q0}Z \(y6o}aW 3.Loop over the baseline material samples and determine the number of wavelength entries v3b[08
F f1cQ*#2~ 4.Loop over each sampled wavelength entry in the baseline material ,2Y PD4 b;wf7~a* a.Modify the ordinary and extraordinary refractive index values using (2) above k+X=8()k QPe+K61U b.Apply the modified values to the non-baseline material Qt+|s&HGt dXAKk[uf 5.Set a description on the non-baseline material indicating the temperature change from baseline B{fPj9Y0 ]+1?T)<! 脚本编程及GUI例程请下载链接: @Y/PvS8! 9zdp8?T http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs a );> _dCsYI% http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd &^ECQ
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