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双折射材料的温度修正 Birefringent Material Temperature Modification ow!utAF 7MZBU~,r 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: "H" 4(3 !=3[Bm G 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline Vi?[yu<F b<P9@h~: 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline U
]`SM6 BRPvBs?Q,{ 3.Loop over the baseline material samples and determine the number of wavelength entries |`1lCyV\tE uK6R+a 4.Loop over each sampled wavelength entry in the baseline material 3~;LNi PB_+:S^8 a.Modify the ordinary and extraordinary refractive index values using (2) above KbQ UA$gL= zp:kdN7!^ b.Apply the modified values to the non-baseline material l<>syHCH;L PxNp'PZr9 5.Set a description on the non-baseline material indicating the temperature change from baseline {~_X-g5|] ]+<[D2f 脚本编程及GUI例程请下载链接: ?'Y\5n/*$ >\y|}|? http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs eRKuy l \
$;E, http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 3}@3pVS
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