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双折射材料的温度修正 Birefringent Material Temperature Modification {.Qv1oOa #E+ybwA 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: ZtZ3I?%U3 .I_atv 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline HGAi2+& =r+K2]z,L 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline S ,F[74K '( I0VJJ 3.Loop over the baseline material samples and determine the number of wavelength entries
Gd A!8 # fqrZ9:@ 4.Loop over each sampled wavelength entry in the baseline material Z*M{ YE@yts a.Modify the ordinary and extraordinary refractive index values using (2) above M|c_P)7ym ~QSX 1w" b.Apply the modified values to the non-baseline material .@): Uh 5r)8MklZ 5.Set a description on the non-baseline material indicating the temperature change from baseline .@fA_8 z&QfZs 脚本编程及GUI例程请下载链接: t+w{uwEY X<5fn+{]S: http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs umns*U%T; `U|7sLR http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd U;/2\Ii
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