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双折射材料的温度修正 Birefringent Material Temperature Modification oF0BBs$ 2/m4| 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: <@z!kl ^>ICycJ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline B
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9(@ qlgo#[i 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline Yy3g7!K5E \&Zp/;n 3.Loop over the baseline material samples and determine the number of wavelength entries 2=/,9ka~ K r DG 4.Loop over each sampled wavelength entry in the baseline material H%z9VJ*!0 K~ob]I<GiB a.Modify the ordinary and extraordinary refractive index values using (2) above +#V.6i Ods/1 KW b.Apply the modified values to the non-baseline material Yg kd 1uI. >j$y@"+ 5.Set a description on the non-baseline material indicating the temperature change from baseline -.=:@H}r GLE/ 1 脚本编程及GUI例程请下载链接: ev"f@y9Do LX2Re
]& http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs bs9X4n5 6(0ME$ http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd O~
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