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双折射材料的温度修正 Birefringent Material Temperature Modification 2K5}3<KD/ QxP` f KC8 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: ?S+/QyjcfJ GZ;Z 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline &3!i@2d;3f c-?
Ygr 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline DX]z=d)tc -i| /JH 3.Loop over the baseline material samples and determine the number of wavelength entries C!CaGf= hhN(;. 4.Loop over each sampled wavelength entry in the baseline material 1uKD&k%q }M;sz a.Modify the ordinary and extraordinary refractive index values using (2) above { mK pD cL-6M^!a b.Apply the modified values to the non-baseline material s0x@
u OJh+[bf" 5.Set a description on the non-baseline material indicating the temperature change from baseline W66}\&5 Y}eZPG.h 脚本编程及GUI例程请下载链接: B3ohHxHu * fOS"-CL http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Zw3hp,P] D/+@d:- G http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd W\d0
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