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双折射材料的温度修正 Birefringent Material Temperature Modification W!Hm~9fz D"(L5jR8m@ 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: JxE53ev L!0OC''C 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline vX0f,y !G^L/?z3 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline '. Ed`?<p 'm1N/)F 3.Loop over the baseline material samples and determine the number of wavelength entries ^z1&8k"[^ X+L) -d 4.Loop over each sampled wavelength entry in the baseline material VVH.2&`I 3$.deYa$R a.Modify the ordinary and extraordinary refractive index values using (2) above ^k5ll=} |F,R&<2 b.Apply the modified values to the non-baseline material "k*PA\U 3.22"U\1: 5.Set a description on the non-baseline material indicating the temperature change from baseline QO;N9ZI |(5W86C,ju 脚本编程及GUI例程请下载链接: {^(ACS9mL EVp,Q"V] http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs {!6/x9> - p3Re9 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd }bY;q-
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