| yuwenhui2008 |
2015-07-26 20:41 |
用ASAP高斯光束分解的方法遇到的问题
各位光学专业的大神，我最近在用ASAP对微阶梯反射镜（如附图）进行模拟。一束单色平行光垂直入射到微阶梯反射镜上，用探测器接收反射光。如图，理论上在探测器上应该也是均匀的光场，但是用ＡＳＡＰ的高斯光束分解模拟得到的结果却如图所示。这是为什么呢？ -bo0!@MK
以下是我的ＡＳＡＰ代码，可以拷贝运行一下。 Z;WqKIM#
kIXLB!L2b^
SYSTEM NEW -pg7>vO q
RESET =YLt ?5|e
B: {bmvy
UNITS MM c!w4N5aM
WAVELENGTHS 3.7 UM Szwa2IdI.
':.d,x)
COATING PROPERTIES
Ge(r6"%7
1 0 'REFLECT' .JQR5R |Q
0 0 'ABSORB' f)"O( c
W=F?+Kg L
PARABASAL 4 x%cKTpDh!
BEAMS COHERENT DIFFRACT :,GsbNKW
WIDTHS 1.6 ?;^_%XSQ*
g K#a C [
A=1 $t}L|"=8X
N=32 ~j F5%Gu
L=(N)*(A) DrMc E31
D1=0.625E-3 S&.DpsK
D2=(N)*(D1) _|* 3uGo:
!! 微阶梯镜======================= W]6Y
buP:
$DO -16 15 1 r}*2~;:pW
{SURFACE cC4*4bMm
PLANE Z 0 RECTANGLE (A)/2 (L)/2 sjShm
OBJECT 'MIRROR2_?' H Qf[T@
INTERFACE COATING REFLECT AIR AIR 7sHtJr
SHIFT X (A)*?+(A)/2 {&K#~[)
SHIFT Z (D2)*? wond>m
3
} {y spNyOx
GROUP MIRROR2_? -qx Z3
SHIFT Z (L) &?zJ|7rh@|
ROTATE X -90 0 0 XPWK"t0 1
!! DETECTOR====================== F_V ~UX1D
SURFACE FA4bv9:hi
PLANE Y -(2*L) RECTANGLE (L)/2 (L)/2
A:NsDEt
OBJECT 'DETECTOR' 3f M
INTERFACE COATING ABSORB AIR AIR <=19KSGFt
!! SOURCE ======================= L$(W*
PG}
GRID RECT Y -(L) -(L)/2 (L)/2 -(L)/2 (L)/2 (256) (256) N'2u`br4KP
SOURCE DIR 0 1 0 `"-)ObOj}
!! !!TRACE PLOT========================= O- r"G
!!WINDOW Y Z '%K,A-7W
!!PLOT FACETS 5 5 !!OVERLAY }> )"!p;t_
TRACE!! PLOT Fnll&TF
!!$VIEW nM}X1^PiK"
EZBk;*= B
CONSIDER ONLY DETECTOR !!CONSIDER ONLY DUMY =>ph \
WINDOW X -(L)/2 (L)/2 Z -(L)/2 (L)/2 x x9qi^
PIXELS (256) NUx%zY
SPREAD NORMAL :Q&8DC#]
DISPLAY p|AIz3
!! FORM 0.5 j##IJm
PICTURE s fVtYIu
RETURN
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