[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。 $rjm MSxi  
谢谢！ $Y$s*h_-/<  
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？ lZ"C~B}9:I  
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SYSTEM NEW \(?d2$0m  
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COATING PROPERTIES DDT]A<WUV  
  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  'ABSORB' SoCN.J30  
  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0   'TRANSMIT' +U1fa9NSn  
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    INTERFACE COATING ABSORB AIR SCHOTT_BK7 > JTf0/  
    FACETS 4 4 c!$~_?]  
    REDEFINE COLOR 1 #LYx;[
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    ROTATE X 90 3=Xvl 58k  
    SHIFT Y -10000 /PBK:B  
!! Verify Geometry b3=XWzK5  
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PLOT FACETS 7 7 OVERLAY p2GN93,u@P  
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PARABASAL 4 )qWO}]F  
BEAMS COHERENT DIFFRACT 4tt=u]:  
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WIDTHS 1.6 1ww~!R  
GRID RECT Y 100 -4@500 2@100 TU2MG VYy  
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DISPLAY {f>e~o  
  PICTURE A^pRHbRq  
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' y$HV;%G{26  
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BEAMS COHERENT DIFFRACT }w/6"MJ[n  
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WIDTHS 1.6 #hF(`oX}4K  
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WINDOW Z -2@(1500/2) X -2@(1500/2) 0;2"X
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SPREAD NORMAL z6;6 o!ej  
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DISPLAY R-J^%4U`7  
  PICTURE 2c1L[]h'
 
RETURN 6-J%Z%yT #  
自己根据例子改的 ?n(OH~@$i  
为什么出来的衍射图和MATLAB的不一样的 fuF!3Q  
相差很大 kBg8:bo~  
自己觉得不对 XsbYWJdds  
请高手指点一下