
DIFFRACTION 263
−2 0
Grating pattern
Slit pattern
Repetition
pattern
Convolve above
two to obtain
grating pattern
Convolve
above two to
obtain grating
output
Apodization
or illumination
Multiply above
two to obtain
grating output
Multiply
above two to
obtain grating
diffraction
pattern
Diffraction pattern
2
0
0.5
1
x, Position in grating
Slit
−100
0 100
−50
0
50
100
150
f, Position in diffraction
pattern
Slit diffraction pattern
−2 0 2
0
0.5
1
x, Position in grating
Comb
−100 −50 0 50 100
0
10
20
30
40
f, Position in diffraction
pattern
Comb
−2 0 2
0
0.5
1
x, Position in grating
Grating
−100 0 100
−2000
0
2000
4000
f, Position in diffraction
pattern
Grating diffraction
pattern
−2 0 2
0
0.5
1
x, Position in grating ...