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双折射材料的温度修正 Birefringent Material Temperature Modification *ywr_9 (#z6w#CU( 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: ^%LyT!y EUV8H}d5 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline K,U8 vc vO/ 3bu} 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 7i#/eRui BD^1V(
I/ 3.Loop over the baseline material samples and determine the number of wavelength entries D$NpyF.87 *{Z=)k% 4.Loop over each sampled wavelength entry in the baseline material ,LmP >Q. Wa&!1'
@ a.Modify the ordinary and extraordinary refractive index values using (2) above HGd.meQ
cJTwgm? b.Apply the modified values to the non-baseline material aS\$@41" i*!2n1c[ 5.Set a description on the non-baseline material indicating the temperature change from baseline |pq9i)e& WA:r4V 脚本编程及GUI例程请下载链接: N&Ho$,2s 0O*kC43E_ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs v#X#F9C 5)h fI7{d http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ~$"2,& "J+4 CHD.b%_| QQ:2987619807 _G25$%/LU
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