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双折射材料的温度修正 Birefringent Material Temperature Modification m Bc2x8g) ]!mC5Ea 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: [@4.<4Y i,R+C.6{ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline }$wWX}@ iH;IXv,b3 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline kCVO!@yZz ?*K{1Ghf 3.Loop over the baseline material samples and determine the number of wavelength entries H%&e[PU gQ8FjL6? 4.Loop over each sampled wavelength entry in the baseline material ch-.+p3 $KAOJc4< a.Modify the ordinary and extraordinary refractive index values using (2) above -V\$oVS0S Ug~]!L b.Apply the modified values to the non-baseline material h!4jl0oX] g/_j"Nn 5.Set a description on the non-baseline material indicating the temperature change from baseline Z<A BK`rEO yr"BeTrS. 脚本编程及GUI例程请下载链接: GyP.;$NHa[ jSKhWxL;' http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs G Ch]5\ `(Eiu$h6V- http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd fk)5TPc^
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