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双折射材料的温度修正 Birefringent Material Temperature Modification FY+@fy <P Vmr2Jp" 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: wlP%
U wmP[\^c%$j 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline zrtbk~v8y 2v*X^2+ 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline jM'Fb.>~ Fk`6
q 3.Loop over the baseline material samples and determine the number of wavelength entries p1z^i( oye/tEMG 4.Loop over each sampled wavelength entry in the baseline material un,W{*s8* cZt5;"xgr] a.Modify the ordinary and extraordinary refractive index values using (2) above ;:)u
rI? N71^ I"@HH b.Apply the modified values to the non-baseline material U!nNT== Y$3liDeL= 5.Set a description on the non-baseline material indicating the temperature change from baseline lcoJ1+`C Hu!<GB~ 脚本编程及GUI例程请下载链接: R*vfp?x bXHtw}n http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 4)N~*+~\h xtXK3[s http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd V5I xZn%
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