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双折射材料的温度修正 Birefringent Material Temperature Modification [b`6v`x |< N frz 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: 9e5gy .C5@QKU 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline |NEd@ .[f;(WR 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 4r*Pa(;y f9']
jJ+ 3.Loop over the baseline material samples and determine the number of wavelength entries .xpmp6- "T*I| 4.Loop over each sampled wavelength entry in the baseline material +"L$ed(=nJ ~n]NyVFP a.Modify the ordinary and extraordinary refractive index values using (2) above R{<Y4C2~ BW71 s b.Apply the modified values to the non-baseline material t:9
ZCu ay FaWl,} ] 5.Set a description on the non-baseline material indicating the temperature change from baseline v>at/ef 3'@&c?Fye 脚本编程及GUI例程请下载链接: $-w5o`e [.U^Wrd http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ]<X2AO1 46dc.Yi http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd I*c;hfu Mdky^;qq3; *8206[y QQ:2987619807 MF|*AB|E
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