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光行天下 -> ZEMAX,OpticStudio -> zemax模擬高斯散射 [點此返回論壇查看本帖完整版本] [打印本頁]

gmfc 2011-01-12 17:54

zemax模擬高斯散射

請教各位,對于zemax模擬高斯散射,我想控制散射角度為5度,我該如何設(shè)置散射公式中的sigma? R*O<(  
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hopebox 2011-01-13 21:07
this is not easy though...... u>*d^[zS  
/s Bs eI  
I guess you need to give a try as sigma indicates the projected width of 1/e squared value of the peak irrdiance in direction cosine space...... for a normally incidence it should be around ~ cosine 85. Good luck !
mang2004 2011-01-13 22:00
試著回答。 Z#zXary5s  
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用下面公式: oAF#bj_f  
σ = 1.2*sin (θ/2) i#%!J:_=  
σ:     ZEMAX 高斯散射模型sigma值; o&RNpP*  
θ:     散射角半高全寬值。 )@_5}8  
如果散射角θ FWHM=5deg, 則σ = 1.2*sin (θ/2)=0.0523,參數(shù)設(shè)置見下圖。 ;Dp<|n  
jm0v=m7  
Hope helpful. {ewo-dva  
MANG2004. (/jZ &4T  
20110113 9+!"[  
gmfc 2011-01-14 09:19
多謝,這些公式有什么參考資料可以看的么?
hopebox 2011-01-14 18:52
Hi MANG2004, W[qQDn!r  
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I am curious about your calculation, too. Plus, the definition of σ refers to 1/e^2 width not the FWHM. Even your calculation/defintion is correct. I have a doubt that it will work when the specualr incident ray angle is not normal......... IN?rPdY  
/TScYE:$HE  
For thsoe who knows it better, please have some input. I am rather curious, too!! Thanks!!
mang2004 2011-01-14 22:43
回樓主gmfc: 8F/JOtkGMt  
這些公式都來自 于ZEMAX用戶手冊有關(guān)非序列元件散射章節(jié),稍加研究就可得出。給我發(fā)消息留下你的郵箱,我可以把推導(dǎo)過程發(fā)給你。 #;hYJ Y  
MANG2004  h@+(VQ  
mang2004 2011-01-14 22:45
Hi, hopebox, Qq<+QL