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双折射材料的温度修正 Birefringent Material Temperature Modification eXj\DjttG} BP )q6?Mz 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: F{#N6,T 1Z^`l6|2 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline ?b!CV
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> 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline [W^6u7~ \>*MMe 3.Loop over the baseline material samples and determine the number of wavelength entries 'Qm` A= u=p ;A1oy 4.Loop over each sampled wavelength entry in the baseline material /e-ka{WS 8>C;
>v a.Modify the ordinary and extraordinary refractive index values using (2) above />dB%* 'hwV b.Apply the modified values to the non-baseline material .Q=2WCv0 3::3r}g 5.Set a description on the non-baseline material indicating the temperature change from baseline DFt=%aV[ &{-oA_@ 脚本编程及GUI例程请下载链接: )GiFkG 7\7 Brw4 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs k| _$R? *G%1_ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd !Z<mrr;T@ \Dvl%:8 p9FA_(`^ QQ:2987619807 Bo\a
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