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双折射材料的温度修正 Birefringent Material Temperature Modification Vq`/]& fS|e{!iI" 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: _xi&%F/ P, l
(4 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline *!BQ1] G c U(z5th 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline dz/fSA ^OIo 3.Loop over the baseline material samples and determine the number of wavelength entries SnXM`v, Gsy>"T{CY 4.Loop over each sampled wavelength entry in the baseline material bf2n%-&9g ~'0n
]Fw a.Modify the ordinary and extraordinary refractive index values using (2) above G:lhrT{ "a'I^B/ b.Apply the modified values to the non-baseline material k{F6WQ7 f-[.^/ 5.Set a description on the non-baseline material indicating the temperature change from baseline Ti0kfjhX7 W|rAn2H 脚本编程及GUI例程请下载链接: U"Bge\6x= y&8`NS#_p? http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs s91[DT4 u^E0u^ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 9IG<9uj 04v
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