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双折射材料的温度修正 Birefringent Material Temperature Modification _Co*"hl>2 Fj`6v"h 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: St6U `~bnshUk 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline ].j;d2xT\ g)<t=+a 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 4EO,9#0 86s.qPB0 3.Loop over the baseline material samples and determine the number of wavelength entries o0nKgq'w|x g?'4G$M 4.Loop over each sampled wavelength entry in the baseline material i9NUv3# k|^e=I
a.Modify the ordinary and extraordinary refractive index values using (2) above 1?6;Oc^ d8|bO#a%9 b.Apply the modified values to the non-baseline material z4snH%q .."= 5.Set a description on the non-baseline material indicating the temperature change from baseline , 8NY<sFh P+m{hn~% 脚本编程及GUI例程请下载链接: BnLM ;5
> yX}riXe http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs wgK:^DP C>d_a;pX http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd Sc!{
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