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双折射材料的温度修正 Birefringent Material Temperature Modification YDj5+'y e9tb]sAG 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: +!!G0Zj/ C'R6mz% Q? 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 3HW&\:q5'M 6,MQT,F 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline '$EyVu! zSU,le 3.Loop over the baseline material samples and determine the number of wavelength entries ,<)D3K< :FfEjNil 4.Loop over each sampled wavelength entry in the baseline material OK8Ho" B]:|;d a.Modify the ordinary and extraordinary refractive index values using (2) above Zq<j}vVJ N)AlQ'Lwx b.Apply the modified values to the non-baseline material `JpFqZ'58 Yf~Kzv1]* 5.Set a description on the non-baseline material indicating the temperature change from baseline o 9/,@Ri\5 /<IWdy]$3 脚本编程及GUI例程请下载链接: W5= j&&|! (V\N1T,f http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs UcOP 0_/ l>`66~+s,` http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd FQ1B%u|
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