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双折射材料的温度修正 Birefringent Material Temperature Modification ccJM>9 =xN= # 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: X[3}?,aqL Dr#c)P~Wd 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 3iX?~ \_BkY%a 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline {6Au3gt/ g P}+wbk 3.Loop over the baseline material samples and determine the number of wavelength entries E-2eOT 8|g<X1H{M 4.Loop over each sampled wavelength entry in the baseline material |oFAGP1
zj{s}* a.Modify the ordinary and extraordinary refractive index values using (2) above $jzFc!rs R9o- `Wz b.Apply the modified values to the non-baseline material 7/IlL
``K#}3 5.Set a description on the non-baseline material indicating the temperature change from baseline W;_E 4 YwDt.6(+, 脚本编程及GUI例程请下载链接: #ToK$8 {dWObh http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Me3dpF *%FA:Y http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd b1?xeG#
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