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双折射材料的温度修正 Birefringent Material Temperature Modification ]+AgXUrbOD M0uC0\'#P 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: \'Ca%j lK y4Nry9 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline m\J"P'=
8B7,qxZ 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline wEbO|S+K1 )yv~wi 3.Loop over the baseline material samples and determine the number of wavelength entries uGS^*W$ o(Ro/U(Wu 4.Loop over each sampled wavelength entry in the baseline material
1O@cev; v1Jg8L= a.Modify the ordinary and extraordinary refractive index values using (2) above AG,;1b,:81 _jrkR
n1 " b.Apply the modified values to the non-baseline material b]5S9^=LI DBzF\- 5.Set a description on the non-baseline material indicating the temperature change from baseline 0Ewt
>~n %v1*D^)) 脚本编程及GUI例程请下载链接: ;WsV.n o|c"W}W http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 3x~AaC.j kpO+ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd <=!|U0YV
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