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双折射材料的温度修正 Birefringent Material Temperature Modification %,q.),F r4XH = 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: =Lp7{09u A\sI<WrH 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline rf
K8q'@ ^{yk[tHpS 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline EqB)sK/3 Ip
*g' 3.Loop over the baseline material samples and determine the number of wavelength entries
8Ogv9 3Ofc\ 4.Loop over each sampled wavelength entry in the baseline material !CY&{LEYn0 F"jt&9jg a.Modify the ordinary and extraordinary refractive index values using (2) above xL
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| b.Apply the modified values to the non-baseline material I PCGt{B~ #f,y&\Xmf 5.Set a description on the non-baseline material indicating the temperature change from baseline c-4STPNQi 4=<*Vd`p 脚本编程及GUI例程请下载链接: HIvZQQW| S?0$? w? http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ,_
2x{0w:> MgMD\ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd k;^
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