[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。 kLF~^/  
谢谢！ ucJ}KMz  
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？ A>8~deZ9  
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SYSTEM NEW 01&@8z'E  
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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' ff7#LeB9  
  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' TNckyP75u  
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PARABASAL 4 \NMqlxp2  
BEAMS COHERENT DIFFRACT w;{Q)_A  
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WIDTHS 1.6 sp:4b$zX  
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  PICTURE 6*9wGLE  
RETURN YK3>M"58  
自己根据例子改的 ?ZRF]\dP]  
为什么出来的衍射图和MATLAB的不一样的 +;q\7*  
相差很大 #_ |B6!D!  
自己觉得不对 4@?0wV  
请高手指点一下