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双折射材料的温度修正 Birefringent Material Temperature Modification czB),vooz !P":z0K4 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: Bw9O)++ H;[?8h( 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline rqKK89fD' ]O0u.=1k 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline BL-7r=Z FV/lBWiQQ 3.Loop over the baseline material samples and determine the number of wavelength entries e2pFX? Digx#'#jf 4.Loop over each sampled wavelength entry in the baseline material 3 FMYs&0r4 =Ew77 a.Modify the ordinary and extraordinary refractive index values using (2) above kovJ9 zy|h1.gd b.Apply the modified values to the non-baseline material Z!4B=?( Nk1p)V SC 5.Set a description on the non-baseline material indicating the temperature change from baseline #T8PgmR M<SV H_ 脚本编程及GUI例程请下载链接: 0W~1v Zq:c2/\c} http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs jHV)
TBr X +/^s) http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd Pj5:=d8z(
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