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双折射材料的温度修正 Birefringent Material Temperature Modification 0IuU4h5Fr AWcPOU 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: c7_b^7h1 ,3u19>2 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline P6rL;_~e 4r$t}t
gX 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline T^t`Hp l[Oxf| 3.Loop over the baseline material samples and determine the number of wavelength entries )DMbO"7 lom4z\6 4.Loop over each sampled wavelength entry in the baseline material 2e&Zs%u =6:Iv"< a.Modify the ordinary and extraordinary refractive index values using (2) above d1N&J`R\1 _G`aI*rKsy b.Apply the modified values to the non-baseline material 5/<Y,eZ/
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5.Set a description on the non-baseline material indicating the temperature change from baseline 6 ?cV1:jh S7R^%Wck/6 脚本编程及GUI例程请下载链接: hQO~9mQ+! 'yqp http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ( ;q$cKy X8<ygci+.5 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd fpUX
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