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双折射材料的温度修正 Birefringent Material Temperature Modification 8eN%sm %/X2 l 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: oN4G1U
Kc bbO+%-(X 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline uGM>C" D|"sE> 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline &6Ns7w6*z S>(z\`1qm 3.Loop over the baseline material samples and determine the number of wavelength entries 4u7Cm q'by;g*m 4.Loop over each sampled wavelength entry in the baseline material %5`r-F
Hl!1h% a.Modify the ordinary and extraordinary refractive index values using (2) above 2S'AIuIew 8KZ$F>T]> b.Apply the modified values to the non-baseline material $>EqH?EQ TdNsyr}JG 5.Set a description on the non-baseline material indicating the temperature change from baseline |c=d;+ E}Ljo 脚本编程及GUI例程请下载链接: A}gYcc85Z 6(,ItMbI http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs #0jSZ g^," h<GyplG http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd V;P1nL4L
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