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双折射材料的温度修正 Birefringent Material Temperature Modification ,iV|^]X3$/ NvY%sx, 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: C0J/FFBQ ^ @uApm~} 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline @-)jU! U,\3 !D0jt 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline [BWA$5D)Ny *>I4X= 3.Loop over the baseline material samples and determine the number of wavelength entries >La!O~d iLD}>= 4.Loop over each sampled wavelength entry in the baseline material Dn1aaN6
Jsde+G,N a.Modify the ordinary and extraordinary refractive index values using (2) above 8tJB/Pw`S %v5 IR b.Apply the modified values to the non-baseline material 7S|nn|\Kp yL{X}:;} 5.Set a description on the non-baseline material indicating the temperature change from baseline (Rj'd>%c VXX7Y?! 脚本编程及GUI例程请下载链接: P
:zZ Gf*|f"O http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs jOV,q%)^,: <2^XKaS` http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd p,0J $L
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