[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。 "x~su?KiA  
谢谢！ o4F?Rx,L  
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？ j.O+e|kxU  
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SYSTEM NEW :SJxG&Pm=~  
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  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' a]4h5kJ';  
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BEAMS COHERENT DIFFRACT Qr9@e Q1Pp  
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WIDTHS 1.6 7w5C NV  
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  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' =VGRM#+D  
  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' Sh(XF
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BEAMS COHERENT DIFFRACT 7%yP5c
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WIDTHS 1.6 ^K[[:7Aem  
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DISPLAY &I?d(Z=:\  
  PICTURE R![1\Yv&
 
RETURN L%fJH_$_s  
自己根据例子改的 v}&J*}_XZ  
为什么出来的衍射图和MATLAB的不一样的 MJG)fFl]O  
相差很大 qWw{c&{Q],  
自己觉得不对 q[TW  
请高手指点一下