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双折射材料的温度修正 Birefringent Material Temperature Modification SieV%T0t1 2L{:H 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: e"&9G}.f 3=eGS 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline ]Rys=.! ',xsUgk 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline sn T4X &rtz&}ZB; 3.Loop over the baseline material samples and determine the number of wavelength entries N*4IxY'vX/ H]n0JG9K 4.Loop over each sampled wavelength entry in the baseline material sMe~C>RD C
Wl95g a.Modify the ordinary and extraordinary refractive index values using (2) above sN an" W*WH .1& b.Apply the modified values to the non-baseline material UOL%tT z@S8H6jM)S 5.Set a description on the non-baseline material indicating the temperature change from baseline sMpC4E mDt",#g
脚本编程及GUI例程请下载链接: . R8W< \#*;H|U.x http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs #z54/T {xb%P!o` http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd >IydXmTy
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