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双折射材料的温度修正 Birefringent Material Temperature Modification rH[Eh8j, K_V$ ktL 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: i(kr#XsU DkBVk+ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline l%7^'nDn c1StA 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline < !]7Gt ~T&X#i 3.Loop over the baseline material samples and determine the number of wavelength entries KQ.cd]6 rE\.[mFI 4.Loop over each sampled wavelength entry in the baseline material JDB Ni+t
="]y^&(L( a.Modify the ordinary and extraordinary refractive index values using (2) above :N>s#{+"3 a4N8zDS b.Apply the modified values to the non-baseline material y#5;wb<1 .?.Q[ic 5.Set a description on the non-baseline material indicating the temperature change from baseline H$]FUv8 HO;,Ya^l 脚本编程及GUI例程请下载链接: #NWc<Dd ">S.~'ds http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs [E/8E
h< #:/-8Z(0 http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd b=Y3O
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