[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。 Uc^eIa@  
谢谢！ TkBHlTa"=  
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？ 41Hv)}Yd  
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SYSTEM NEW C.].HQ  
RESET |Bz1u|uc  
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WAVELENGTHS 0.5 0.6 0.7 0.8 0.9 1.1 UM w;W# 'pE  
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PI=4*ATAN(1) %<8`(Uu5  
COATING PROPERTIES !K*(# [  
  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' ti'B}bH>'  
  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' :e/*5ix  
  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' `i`+yh>pc#  
  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' B\S}*IE  
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EDGE ,4:=n$e 0  
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!! DETECTOR qYoB;gp  
SURFACE .
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  PLANE Z 0 RECTANGLE (1000/2) (1000/2) 0 0 0 <aztbq?  
  OBJECT 'DETECTOR' ;3x*pjLG:Q  
    INTERFACE COATING ABSORB AIR SCHOTT_BK7 aD]! eP/)  
    FACETS 4 4 @`
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    REDEFINE COLOR 1 t:MSV?  
    ROTATE X 90 bTU[E  
    SHIFT Y -10000 L4,b
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PARABASAL 4 rk6K0TQ8  
BEAMS COHERENT DIFFRACT <d @9[]  
WAVELENGTH 0.5 MICRONS /~MH]Gh  
WIDTHS 1.6 vJLGy]  
GRID RECT Y 100 -4@500 2@100 }}"pQ!Z  
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  FLUX 0 1 SOU 1 ],_+J*  
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PIXELS 100 
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CONSIDER  ONLY DETECTOR W:,Wex^9n  
SPREAD NORMAL ak7kb75o  
WINDOW Z -2@(1500/2) X -2@(1500/2) 9.8%Iw  
WINDOW 1  !! Enlarge by t;BUZE_!0c  
SPREAD NORMAL rUpe  ;c  
DISPLAY LRVcf  
  PICTURE RWc<CQcL"  
RETURN

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SYSTEM NEW 1Y|a:){G  
RESET ]K"&Vd  
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UNITS  UM 'W' Nob(D'vSr  
WAVELENGTHS 0.5 0.6 0.7 0.8 0.9 1.1 UM u.ggN=Z  
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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' FQ]/c#J  
  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' xG9Sk  
  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' zxbfh/=  
  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' wDJ`#"5p{  
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EDGE aQCu3T  
RECTANGLE Y 0 10000 10000 16 0.0 360.0 DxJ;C09xNa  
SMOOTH tAdE<).!  
ELLIPSE Y 0 500 500 16 0.0 360.0 0zaK&]oY0  
SMOOTH
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OBJECT \D7bTn  
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  PLANE Z 0 RECTANGLE (1000/2) (1000/2) 0 0 0 "& ,ov#  
  OBJECT 'DETECTOR' JvpGxj  
    INTERFACE COATING ABSORB AIR SCHOTT_BK7 tyu@aCK  
    FACETS 4 4 jJy:/!i  
    REDEFINE COLOR 1 r
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    SHIFT Y -10000 F (*B1J2_g  
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!! Verify Geometry N
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WINDOW Y Z &Y{^yb  
PLOT FACETS 7 7 OVERLAY T@ c~ql  
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!! Define source 1 >STtX6h  
PARABASAL 4 J|`0GDSn  
BEAMS COHERENT DIFFRACT +yGQt3U  
WAVELENGTH 0.5 MICRONS rE3dHJN;  
WIDTHS 1.6 w;z7vN~/O  
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GRID RECT Y 100 -4@500 2@100 D(!^$9e9b  
  SOURCE DIRECTION 0 -1 0 ~b f\fPm  
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  FLUX 0 1 SOU 1 BOs/:ZbK0W  
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TRACE PLOT COLOR 2 IG781:,/  
$VIEW c8l>OS5i3_  
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PIXELS 100 db
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CONSIDER  ONLY DETECTOR OQVrg2A%(  
SPREAD NORMAL bsIG1&n'T  
WINDOW Z -2@(1500/2) X -2@(1500/2) XzUGlrp:Y#  
WINDOW 1  !! Enlarge by $l7^-SK`E  
SPREAD NORMAL }^ rxsx`  
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DISPLAY hXW` n*Zw  
  PICTURE ex3Qbr  
RETURN i+_LKHQN  
自己根据例子改的 g3R(,IH  
为什么出来的衍射图和MATLAB的不一样的 Ve,g9I  
相差很大 /jbAf]"F;  
自己觉得不对 5KCB^`|b>t  
请高手指点一下