[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。 w?PkO p  
谢谢！ \k7"=yx  
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？ TIqtF&@o4  
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SYSTEM NEW .fqN|[>  
RESET OU\~::  
UNITS  UM 'W' {f_={k  
WAVELENGTHS 0.5 0.6 0.7 0.8 0.9 1.1 UM G{~J|{t\yz  
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PI=4*ATAN(1) LG9+GszX 2  
COATING PROPERTIES oi7@s0@  
  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' @Rze| T.  
  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' d UE,U=  
  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' 0(}t8lc  
  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' F}yW/  
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EDGE R{`(c/%8  
RECTANGLE Y 0 10000 10000 16 0.0 360.0 *->W^1eGM  
SMOOTH tPWLg),  
ELLIPSE Y 0 500 500 16 0.0 360.0 FW;?s+Uyx  
SMOOTH T9|m7  
OBJECT VOsRAn/N  
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!! DETECTOR ah$b[\#C  
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  OBJECT 'DETECTOR' (62"8iD
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    INTERFACE COATING ABSORB AIR SCHOTT_BK7 |)DGkOtd  
    FACETS 4 4  RZ?jJm$  
    REDEFINE COLOR 1  `,*3[  
    ROTATE X 90 F@jZ
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!! Verify Geometry r| wS<cA2  
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PLOT FACETS 7 7 OVERLAY QD&`^(X1p  
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PARABASAL 4  :A_@,Q  
BEAMS COHERENT DIFFRACT =_*Zn(>t`  
WAVELENGTH 0.5 MICRONS ?3`UbN:  
WIDTHS 1.6 Y=?3 js?O  
GRID RECT Y 100 -4@500 2@100 Xf]d. :  
  SOURCE DIRECTION 0 -1 0 x_Y!5yg E  
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  FLUX 0 1 SOU 1 @+2=g WH  
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TRACE PLOT COLOR 2 ?pmHFlx  
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PIXELS 100 9d659iC  
CONSIDER  ONLY DETECTOR FIhk@TKa  
SPREAD NORMAL ifQ*,+@fxR  
WINDOW Z -2@(1500/2) X -2@(1500/2) kd(8
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  PICTURE (NU NHxi5B  
RETURN

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SYSTEM NEW _C?hHWSf"  
RESET xJ8M6O8  
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UNITS  UM 'W' =s2*H8]  
WAVELENGTHS 0.5 0.6 0.7 0.8 0.9 1.1 UM 1~ 3_^3OT  
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COATING PROPERTIES 9}<ile7^  
  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' & G4\2l9  
  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' JIOR4'9  
  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' pJ"qu,w  
  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' ]Ie
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SMOOTH [!#L6&:a8  
ELLIPSE Y 0 500 500 16 0.0 360.0 6iE<T&$3P  
SMOOTH |N7M^  
OBJECT /]Md~=yNp  
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  OBJECT 'DETECTOR' 37.S\gO]  
    INTERFACE COATING ABSORB AIR SCHOTT_BK7 +.FEq*V  
    FACETS 4 4 :bq8N@P/  
    REDEFINE COLOR 1 rcG"o\g@+  
    ROTATE X 90 +_oJ}KI  
    SHIFT Y -10000 FHg 9OI67  
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!! Verify Geometry 08\,<9  
WINDOW Y Z vw/J8'  
PLOT FACETS 7 7 OVERLAY )'cMYC  
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!! Define source 1 ]Q3ADh  
PARABASAL 4 p%=u#QNi  
BEAMS COHERENT DIFFRACT :J&oX <nF^  
WAVELENGTH 0.5 MICRONS 'S&zCTX7j  
WIDTHS 1.6 ={&j07,*a  
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GRID RECT Y 100 -4@500 2@100 `l[c_%Bm  
  SOURCE DIRECTION 0 -1 0 3;{kJQ
 
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  FLUX 0 1 SOU 1 $G@5qxcV  
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TRACE PLOT COLOR 2 (iX+{a%"  
$VIEW qfm|@v|De5  
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PIXELS 100 =X:Y,?  
CONSIDER  ONLY DETECTOR dcN22A3  
SPREAD NORMAL dkTX  
WINDOW Z -2@(1500/2) X -2@(1500/2) +\ .Lp 5  
WINDOW 1  !! Enlarge by }|NCboM^_  
SPREAD NORMAL uHzU-FZ|B  
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DISPLAY M!^az
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  PICTURE Ai3*QX  
RETURN VjZ|$k  
自己根据例子改的 Lnl=.z`jK  
为什么出来的衍射图和MATLAB的不一样的 $uVHSH5l  
相差很大 . 3T3EX|G  
自己觉得不对 4>e&f&y~  
请高手指点一下