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双折射材料的温度修正 Birefringent Material Temperature Modification Me}TW!GC NDOZ!`LqH 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: )*A,L% bF KPV%` 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline C^%zV>o bSr 'ji 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline )T64(_TE 87K)qsv8 3.Loop over the baseline material samples and determine the number of wavelength entries FR}H$R7# w}.'Tebu 4.Loop over each sampled wavelength entry in the baseline material i)2))C 4{DeF@@ a.Modify the ordinary and extraordinary refractive index values using (2) above F3Y>hs):7 Z0=m:h b.Apply the modified values to the non-baseline material rEhf_[Dv mU=6"A0
U 5.Set a description on the non-baseline material indicating the temperature change from baseline Hk]BC Q@2tT&eL 脚本编程及GUI例程请下载链接: x
ctU.)p 30_un http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs k,7+=.6 s\W http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 1qC:3
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