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? wfgqgPo!v 以下是我的ASAP代码,可以拷贝运行一下。 dj'm, k
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#j;Tb2&w SYSTEM NEW N]NF\7( RESET w OI^Q~ xwRhs!`t1 UNITS MM s~*}0-lS WAVELENGTHS 3.7 UM 0ZMJ(C j 5Qo*p COATING PROPERTIES Ck\7F?S 1 0 'REFLECT' r-}-C! 0 0 'ABSORB' !b8uLjd; qve
./ PARABASAL 4 _AFQ >j BEAMS COHERENT DIFFRACT VYZU eh WIDTHS 1.6 9mlIbEAb $9 +YNgW> A=1 ~C-,G"zw&G N=32 6i.gyD L=(N)*(A) ,apNwkY D1=0.625E-3 FmEc`N9\v D2=(N)*(D1) *z'8j !! 微阶梯镜======================= %SrM|&[ $DO -16 15 1 "13"`!m {SURFACE (D<(6? PLANE Z 0 RECTANGLE (A)/2 (L)/2 ;}qhc l+ OBJECT 'MIRROR2_?' G O{.9_2 INTERFACE COATING REFLECT AIR AIR :_ROJ SHIFT X (A)*?+(A)/2 )KE[!ofD SHIFT Z (D2)*? Wy4$*$ } K=dR%c( GROUP MIRROR2_? M*sR3SZ
SHIFT Z (L) <[Q3rJ ROTATE X -90 0 0 W3r?7!~ !! DETECTOR====================== (-0ePSOG SURFACE Yw'NX5#)g PLANE Y -(2*L) RECTANGLE (L)/2 (L)/2 G,f-. OBJECT 'DETECTOR' %dMqpY7" INTERFACE COATING ABSORB AIR AIR k1^\| !! SOURCE ======================= +-<}+8G; GRID RECT Y -(L) -(L)/2 (L)/2 -(L)/2 (L)/2 (256) (256) |F[=b'? SOURCE DIR 0 1 0 1TS0X:TCn !! !!TRACE PLOT========================= MP^ d}FL !!WINDOW Y Z R\mR $\cS !!PLOT FACETS 5 5 !!OVERLAY IvHh4DU3Z TRACE!! PLOT s&a1y~rv !!$VIEW sa1h%< vAb^]d CONSIDER ONLY DETECTOR !!CONSIDER ONLY DUMY 7j$Pt8$ WINDOW X -(L)/2 (L)/2 Z -(L)/2 (L)/2 %zBCq"y PIXELS (256) <IJu7t> SPREAD NORMAL :i~W
}r DISPLAY {2&m`Dbm !! FORM 0.5 yNg9X(U PICTURE #3$\Iu RETURN
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