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双折射材料的温度修正 Birefringent Material Temperature Modification qvC 2BQ >*]dB| 2 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: {\u6Cj x VYw<8AEFY 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 3\2^LILLO Y~Z&h?H'} 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline Min{&?a 'Y22HVUX 3.Loop over the baseline material samples and determine the number of wavelength entries 'TO/i:{\ VoC|z Rd_ 4.Loop over each sampled wavelength entry in the baseline material q5G`N>"V
B".3NQ a.Modify the ordinary and extraordinary refractive index values using (2) above =v(&qh9Q2 's\rQ-TV b.Apply the modified values to the non-baseline material Ie7S'.Lmq 9 Eqv^0u 5.Set a description on the non-baseline material indicating the temperature change from baseline Y;1s=B9 A)80qx:
脚本编程及GUI例程请下载链接: pqDlg E4N"|u| http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs =J0r,dR 95.s,'0 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd ?W\KIp\Kn
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