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双折射材料的温度修正 Birefringent Material Temperature Modification ^4c2}>f 31<hn+pE& 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: %[&cy' ^ D?;K8a-l 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline yEzp+Ky
Js'COO 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline <@(HQuL# 5H""_uw 3.Loop over the baseline material samples and determine the number of wavelength entries Jel%1'Dc^ (;V]3CtU* 4.Loop over each sampled wavelength entry in the baseline material 6@; w%Ea z| i$eF;x3 a.Modify the ordinary and extraordinary refractive index values using (2) above @X DM~Q+C=Yr b.Apply the modified values to the non-baseline material ezC55nm d cYUw] 5.Set a description on the non-baseline material indicating the temperature change from baseline q yQPR Eki7bT@/ 脚本编程及GUI例程请下载链接: ,t(y~Z
wJ h&;\ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs FV! FzFY2h;n]B http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd {(7C=)8):
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