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双折射材料的温度修正 Birefringent Material Temperature Modification mQ(6ahD U fNR2(8;} 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: 5B6twn~[ G*;?&;* 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline xE>H:YPm zv[$N, 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline L_4c~4 xAJ
N(8? 3.Loop over the baseline material samples and determine the number of wavelength entries M~'4>h} ) 0NKL:u 4.Loop over each sampled wavelength entry in the baseline material })#VO-J 8(d Hn a.Modify the ordinary and extraordinary refractive index values using (2) above 3s%Kw,z ` mvPbZ0< b.Apply the modified values to the non-baseline material :\hcl&W: WXq=FZ- 5.Set a description on the non-baseline material indicating the temperature change from baseline }-` N^ `Xs3^FJt 脚本编程及GUI例程请下载链接: .M(')$\U gR5
EK$ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs P ?^h o,qq*}= http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd )ZZjuFQJ)
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