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双折射材料的温度修正 Birefringent Material Temperature Modification ),vDn}> Wk7E&?-:6 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: hFm^Fy[R f8[O]MrO; 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline Ph]b6 3QBzyJWf 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline .xwskzJ3 6QA`u* 3.Loop over the baseline material samples and determine the number of wavelength entries AB\Ya4O"9 q++\<\2 4.Loop over each sampled wavelength entry in the baseline material smfI+Z S" *]HnFP a.Modify the ordinary and extraordinary refractive index values using (2) above aL[6}U0 (} ?Xvy0/s5 b.Apply the modified values to the non-baseline material >i*,6Psl[Z O6/ vFEB 5.Set a description on the non-baseline material indicating the temperature change from baseline `XH0S`B O<Q8%Az 脚本编程及GUI例程请下载链接: r!fUMDS '4{=x]K http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 17?YN< 7^#f)Vp http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ~Z/,o)
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