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双折射材料的温度修正 Birefringent Material Temperature Modification dbw`E"g V}& 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: vb# d%1b5 h-V5&em"_ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline >Py=H+d!j {C
[7V{4(% 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 7P=j2;7 v HA| YLj?|g 3.Loop over the baseline material samples and determine the number of wavelength entries vNP,c]:% IYd)Vv3'j 4.Loop over each sampled wavelength entry in the baseline material VgOj#Z?K 2|+**BxHD a.Modify the ordinary and extraordinary refractive index values using (2) above 9k1n-po Lf3:' n b.Apply the modified values to the non-baseline material Gt' %:9r z"|^Y|`m 5.Set a description on the non-baseline material indicating the temperature change from baseline C;_10Rb2ut Eg>MG87 脚本编程及GUI例程请下载链接: 6tVB}UKs !9B)/Xi http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs tT'+3 +`zM^'^$ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd rk `x81
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