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双折射材料的温度修正 Birefringent Material Temperature Modification 9>1Gj-S2: 0OAHD ' 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: ZA
Xw=O5 4;.y>~z 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline T~JE.Y3B3 M qG`P 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline & U6 bOH%P ">hOD'PG 3.Loop over the baseline material samples and determine the number of wavelength entries XLxr@1 W&Pp5KR 4.Loop over each sampled wavelength entry in the baseline material AV:P/M^B eh5j a.Modify the ordinary and extraordinary refractive index values using (2) above .uwD;j
+# "JJEF2e@Z b.Apply the modified values to the non-baseline material l-G] jXu Vi o ~2 5.Set a description on the non-baseline material indicating the temperature change from baseline :$gR
>.` Mpu8/i
gX, 脚本编程及GUI例程请下载链接: *oca l1MVC@'pvP http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs 8O_0x)X /Xo8 kC http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd 1@L|EFa
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