[求助]请帮忙写个圆孔衍射的程序 [复制链接]

偶是新手，不明白里面的衍射是怎么弄的，请各位大侠帮忙写个圆孔衍射的程序看看行吗？在DETECTOR显示出衍射图样来？希望把程序命令帖出来。 QZ-6aq\sgp  
谢谢！ AQBr{^inH|  
自己根据例子改了一个，但是发现出来的图像和matlab的不一样，相差很大，觉得应该是错了，请大家帮忙看看呗？ <CP't[  
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SYSTEM NEW wCr+/"t  
RESET e3&.RrA  
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WAVELENGTHS 0.5 0.6 0.7 0.8 0.9 1.1 UM 'UCF2L  
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PI=4*ATAN(1) +QrbW  
COATING PROPERTIES {u7_<G7  
  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  'ABSORB' 1lUY27MF  
  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0   'TRANSMIT' g|3FJA/  
  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0   'REFLECT' bO{wQ1)Z_  
  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  'BEAM_SPLITTER' .!Q[kn0a  
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!! DETECTOR b_0Xi  
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  OBJECT 'DETECTOR' 4~{q=-]V  
    INTERFACE COATING ABSORB AIR SCHOTT_BK7 yX8$LOjE  
    FACETS 4 4 V-iY2YiR  
    REDEFINE COLOR 1 C}GOwvAL>  
    ROTATE X 90 E^jb#9\R  
    SHIFT Y -10000 m]U`7!  
!! Verify Geometry {7X80KI  
WINDOW Y Z wg,w;Gle  
PLOT FACETS 7 7 OVERLAY G_x<2E"d  
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!! Define source 1 vvG#O[
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PARABASAL 4 O%kX=6  
BEAMS COHERENT DIFFRACT jkIgEF2d*  
WAVELENGTH 0.5 MICRONS .),m7
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WIDTHS 1.6 :AB$d~${M>  
GRID RECT Y 100 -4@500 2@100 DPZG_{3D  
  SOURCE DIRECTION 0 -1 0 pTJJ.#$CEF  
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  FLUX 0 1 SOU 1 !_gHIJiq}  
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TRACE PLOT COLOR 2 qMe$Qr8  
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PIXELS 100 <J QvuC  
CONSIDER  ONLY DETECTOR T/&4lJ^2l^  
SPREAD NORMAL v [ 4J0  
WINDOW Z -2@(1500/2) X -2@(1500/2) =7mn= w?  
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SPREAD NORMAL %
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DISPLAY 50.cMms  
  PICTURE
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RETURN

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  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0   'TRANSMIT' ;aip1Df  
  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0   'REFLECT' !PI& y  
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SMOOTH aCe<*;b@  
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OBJECT #=@( m.k:s  
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!! DETECTOR : uglv6
 
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    INTERFACE COATING ABSORB AIR SCHOTT_BK7 eDR4c%  
    FACETS 4 4 ]?p&sI4  
    REDEFINE COLOR 1 7yLO<o?9w  
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!! Verify Geometry ][1*.7-  
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!! Define source 1 j'#M'W3@  
PARABASAL 4 6H,n?[zTt  
BEAMS COHERENT DIFFRACT y-qbK0=X4  
WAVELENGTH 0.5 MICRONS RfVVAaI  
WIDTHS 1.6 !j,LS$tPu  
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GRID RECT Y 100 -4@500 2@100 )'BuRN8  
  SOURCE DIRECTION 0 -1 0 p}%T`e=Z9  
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PIXELS 100 ,b2YUb]U  
CONSIDER  ONLY DETECTOR pZ?7'+u$L  
SPREAD NORMAL v`ckvl)(C  
WINDOW Z -2@(1500/2) X -2@(1500/2)  ~{7/v  
WINDOW 1  !! Enlarge by T >XnVK  
SPREAD NORMAL
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DISPLAY 'xi[- -  
  PICTURE ^sR]w]cz.  
RETURN !e?g"5r{Bv  
自己根据例子改的 \^O#)&5 V  
为什么出来的衍射图和MATLAB的不一样的 Ergh]"AD6-  
相差很大 cs[_5r&:  
自己觉得不对 @giJ&3S,  
请高手指点一下