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双折射材料的温度修正 Birefringent Material Temperature Modification N!`e}Z6S p<:!)kt 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: fw[y+Bi&
? fxT-j s#S 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline /a6Xa&(B |\n_OS7 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 6d+p7x $v Z$'( 3.Loop over the baseline material samples and determine the number of wavelength entries )XWP\
h [k-+AA>: 4.Loop over each sampled wavelength entry in the baseline material a@R]X5[O ]n-:Yv5 W a.Modify the ordinary and extraordinary refractive index values using (2) above @}kv-* V <bd;m b.Apply the modified values to the non-baseline material zz& ?{vJ RVeEkv[qp 5.Set a description on the non-baseline material indicating the temperature change from baseline `Qqk<o $HJwb-I 脚本编程及GUI例程请下载链接: <vwkjCA` gJM`[x`T http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs QD%L0;j hqRw^2F http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ~9j%Hm0ht
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