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双折射材料的温度修正 Birefringent Material Temperature Modification a^[io1}- .[cT3l/t 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: Bo%M-Gmu 08k1 w,6W 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline e7#=F6 m OmT]X 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline ^fK8~g;rB u6r-{[W} 3.Loop over the baseline material samples and determine the number of wavelength entries rLL;NTN+/ MiRH i<g0 4.Loop over each sampled wavelength entry in the baseline material 4vqu(w8
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{ d-A a.Modify the ordinary and extraordinary refractive index values using (2) above 8QC:ro W]Ph:O^5c b.Apply the modified values to the non-baseline material AU'{aC+p L6 _Sc-sU 5.Set a description on the non-baseline material indicating the temperature change from baseline ;;nmF# m(OBk;S~ 脚本编程及GUI例程请下载链接: 2~J|x+
GMNf#;x http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs kI[EG<N1k 82/iVm1 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd eazP'(rc e:7aVOm Q^39Wk@ QQ:2987619807 _l8oB)
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