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双折射材料的温度修正 Birefringent Material Temperature Modification $btk48a 7 BK foeN)% 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: Gr|102 _lZWy$rm% 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 6M6r&,yRu IoxdWQ4]A 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 4^K<RSYs . L]!* 3.Loop over the baseline material samples and determine the number of wavelength entries ByW,YKMy I*=
=I4qx 4.Loop over each sampled wavelength entry in the baseline material &BRi& &f }b]z+4Ua( a.Modify the ordinary and extraordinary refractive index values using (2) above QzD8
jk# ]= 9^wS b.Apply the modified values to the non-baseline material 8'VcaU7Nh HhT6gJWrU 5.Set a description on the non-baseline material indicating the temperature change from baseline dJ=z'?|%g `>\>'V<& 脚本编程及GUI例程请下载链接: ?`=r@ lm(k[]@ http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Eh.NJI( F)uS2 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd =U3rOYbP; cy( WD#^ "S0WFP\P+ QQ:2987619807 h$a%PaVf
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