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双折射材料的温度修正 Birefringent Material Temperature Modification ^A#x<J+ rKIRNc#d 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: y5%5O xB }4KW@L[g 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline !Bj^i
cR Gh+f1)\FA" 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline A]xCF{*)& Z@oKz:U 3.Loop over the baseline material samples and determine the number of wavelength entries
JWWInuH -XW8 LaQB 4.Loop over each sampled wavelength entry in the baseline material
uMpl#N p ArX]L$D a.Modify the ordinary and extraordinary refractive index values using (2) above H &fTh KBj@V6Q b.Apply the modified values to the non-baseline material l7~Pa0qD |0]YA 5.Set a description on the non-baseline material indicating the temperature change from baseline >#?iO]). kQ[Jo%YT?E 脚本编程及GUI例程请下载链接: `u=oeM: #G~wE*VR$ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs c_DaNEfaY G<fS(q http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd -;ER`Jqs,
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