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双折射材料的温度修正 Birefringent Material Temperature Modification sz/^Ie-~ | X#!5u 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: ,UVu.RjXN X}x\n\Z 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline h0dZr-c !'[?cEog 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline >)diXe}j }!Pty25j 3.Loop over the baseline material samples and determine the number of wavelength entries 2)0J@r' CSW+UaE 4.Loop over each sampled wavelength entry in the baseline material `J03t\ Svo\+S a.Modify the ordinary and extraordinary refractive index values using (2) above q o^mp v?,@e5GZ b.Apply the modified values to the non-baseline material [.Fq
l+ Np$&8v+en 5.Set a description on the non-baseline material indicating the temperature change from baseline gzKMGL?%? Bvj sl 脚本编程及GUI例程请下载链接: *[b>]GXd49 [\h?mlG? http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ;P;c!}:\b 3 4%B0 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd oqbz!dM(Z
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