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双折射材料的温度修正 Birefringent Material Temperature Modification Q
w - z GIn%yB' 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: _VTpfeL@n `%"x'B`mM 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline \okv}x^L=Z \NEk B&^n 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline c h((u(G j+{cc: h"X 3.Loop over the baseline material samples and determine the number of wavelength entries -Fu,oEj{* Fq5u%S 4.Loop over each sampled wavelength entry in the baseline material noEl+5uY $ #2<f 6 a.Modify the ordinary and extraordinary refractive index values using (2) above /e^) *r :Ea|FAeK8 b.Apply the modified values to the non-baseline material <r`;$K
;Q4,I[?% 5.Set a description on the non-baseline material indicating the temperature change from baseline * fj`+J Z
P6p>?DQ 脚本编程及GUI例程请下载链接: DuDt'^] OLm@-I* http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs qswC>Gi 3EY
m@oZj http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd DHx&%]r;D P8|ANe1
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