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双折射材料的温度修正 Birefringent Material Temperature Modification X
jPPgI mB\)Q J.% 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: >Bw<THx %w$\v"^_Y 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline z`}<mY
E h+\+9^l6| 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline !g`^<y! +6zW(Ql/
3.Loop over the baseline material samples and determine the number of wavelength entries Ux/|D_rlf s'7PHP)LOJ 4.Loop over each sampled wavelength entry in the baseline material c*m7'\ "_f~8f`y a.Modify the ordinary and extraordinary refractive index values using (2) above v3*y43 OfE>8*RI4 b.Apply the modified values to the non-baseline material QLPb5{>KDS KD<smwXjG 5.Set a description on the non-baseline material indicating the temperature change from baseline S3?Bl' cD%_+@GaU 脚本编程及GUI例程请下载链接: '!hA!eo>J
x>]14bLz http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs CD!Aa z [|:HS& http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd cko^_V&x
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