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双折射材料的温度修正 Birefringent Material Temperature Modification Aga7X@fV( <4O=[Q 5S 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: 0c3G_I= 3)3'-wu 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline G4RsH/ Z2$-},i 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline w1KQ9H* R/b=!< 3.Loop over the baseline material samples and determine the number of wavelength entries (=PnLP |RjjP 7 4.Loop over each sampled wavelength entry in the baseline material ;ib~c, He]F~GXP a.Modify the ordinary and extraordinary refractive index values using (2) above P0z "Eq0S lhjPS!A~ b.Apply the modified values to the non-baseline material Jz|(B_U mWGT
(`|~/ 5.Set a description on the non-baseline material indicating the temperature change from baseline )Tb;N )b-G2< kb 脚本编程及GUI例程请下载链接: %2L9kw' |BW956fBU http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs ~}M{[6! '{+hti,Lh http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd a%]p*X!
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