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雙折射材料的溫度修正 Birefringent Material Temperature Modification L2:C6Sc Gh< r_O~L3 目前，FRED尚不支持“global”溫度設置，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： )PwDP f&,.h"bS 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline d9^h
YS{ fu|I(^ NV 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline J0x)m2
:jhJp m1Xq 3.Loop over the baseline material samples and determine the number of wavelength entries 7_|zMk.J* cBAA32wf 4.Loop over each sampled wavelength entry in the baseline material 4 iw+3 Q| ?$gEX@5h a.Modify the ordinary and extraordinary refractive index values using (2) above KUp
lN1Sy /!LfEO b.Apply the modified values to the non-baseline material 18`?t_8 g ;+5eE`]a/L 5.Set a description on the non-baseline material indicating the temperature change from baseline @hCGV'4 Ms$kL'/ 腳本編程及GUI例程請下載鏈接： : |Z*aI]9 1M+mH#?  http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs Ltu;sw a([cuh. http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd F Pu,sz8
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