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双折射材料的温度修正 Birefringent Material Temperature Modification 4]6-)RHFB `46z D
? 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: T"<)B^8f Xj~%kPe 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline wE}Wh5 MzDosr3: 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline @w`wJ*I4, MdmN7> 3.Loop over the baseline material samples and determine the number of wavelength entries SZ}=~yoD( eze%RjO} 4.Loop over each sampled wavelength entry in the baseline material DTSf[zP/ {Wu[e,p a.Modify the ordinary and extraordinary refractive index values using (2) above Q<gUu^rq ambr}+}
b.Apply the modified values to the non-baseline material )]s<Czm% 1GK>&; 5.Set a description on the non-baseline material indicating the temperature change from baseline ZvMU3])u =E<H_cUS 脚本编程及GUI例程请下载链接: 6?;z\AP& cnI5G! http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs O1bW, n( T6QRr}8`/J http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd cqSXX++CS,
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