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雙折射材料的溫度修正 Birefringent Material Temperature Modification RVe UQ% gK"E4{ y_@ 目前，FRED尚不支持“global”溫度設(shè)置，溫度敏感性評估一般用腳本編程來完成，該文檔演示雙折射材料的折射率隨溫度變化的問題。附件案例文件包括兩個雙折射材料模，“KDP”和 “KDP Baseline”， KDP Baseline材料存儲在已知溫度下的折射率，KDP材料用于儲存在“current”溫度下的折射率值，定義為與baseline material之間的溫度差。一個嵌入的腳本名為“modifyBirefringentMaterialIndex” ，包含在FRED文件中，另外也單獨附加。其實現(xiàn)過程如下： JlN <w b+ v!3| 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline y@Ga9bI7 T,Zfz9{n 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline x4bj ?=+ %'i`Chc^!; 3.Loop over the baseline material samples and determine the number of wavelength entries 6`hHx=L ;K<W<v5m0N 4.Loop over each sampled wavelength entry in the baseline material sAU! u TY h_uox6 a.Modify the ordinary and extraordinary refractive index values using (2) above El`f>o+EJ -_|U"C$ b.Apply the modified values to the non-baseline material h4dT N} lCMU{) 5.Set a description on the non-baseline material indicating the temperature change from baseline #i~2C@] ^ s@'nKc 腳本編程及GUI例程請下載鏈接： C'j E'B5b nd1%txIsr  http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs #}{1>g{sXt jZvQMW http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 3[O;HS3| [>tyx{T Ye
PE-P(T3s[8 QQ：2987619807 MX{p)(HW
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