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双折射材料的温度修正 Birefringent Material Temperature Modification -yTIv*y pf+VYZ#) 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: rvK%m_r 7$t['2j3 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline m(^N8k1K; g!o2vTt5 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline >oaL -01i Bu+?N%CBi 3.Loop over the baseline material samples and determine the number of wavelength entries ULgp]IS }qWB=,8HQ 4.Loop over each sampled wavelength entry in the baseline material F?0Q AA 7,8TMd1`M a.Modify the ordinary and extraordinary refractive index values using (2) above 0IP0zil -_eG/o=M b.Apply the modified values to the non-baseline material q_mxZM
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5.Set a description on the non-baseline material indicating the temperature change from baseline Cud!JpL &\Lu}t7Ru 脚本编程及GUI例程请下载链接: !IB}&m q)KOI`A http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs AT1{D!b 8xG"hJR http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 0PsQ
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