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双折射材料的温度修正 Birefringent Material Temperature Modification ZkyH<Aa p.gaw16}> 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: H^N@fG<*dh &wlSOC')j 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline s4$Z.xwr bUW`MH7yJ 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline {~"&$DY2 QT5,_+ho 3.Loop over the baseline material samples and determine the number of wavelength entries PLi [T4u Btmv{'T_y@ 4.Loop over each sampled wavelength entry in the baseline material `g;`yJX< .H,wdzg) a.Modify the ordinary and extraordinary refractive index values using (2) above ]"3(UKx e7j30Iy b.Apply the modified values to the non-baseline material FQbF)K~e O6LuFT. 5.Set a description on the non-baseline material indicating the temperature change from baseline #gw ys
qc*z`Wz: 脚本编程及GUI例程请下载链接: uqhNi!; !$:lv)y http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Lh%>>
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nL http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd _?M71>3$.
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