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physical optics
reflective grating


theoretical resolvance of a reflective grating in the air when observing in the back focal plane of a lens


Caution
Fill in all input cells.
Choose all parameters unit.
All parameters are positive except i and k which are algebric.
Angle positive way is counterclockwise according the round arrow in the bottom right of the scheme.

InputValueunit
lam
i
d
k
D
fi
OutputValueUnit
dxto be calculated
Reto be calculated
theoretical resolvance of a reflective grating in the air when observing in the back focal plane of a lens
lam : wavelength i : angle of incidence d : grating pitch k : diffraction order D : aperture of the grating fi : effective focal length of the lens ( fi is positive as the lens is converging ) dx : width of the diffracted beam in the back focal plane of the lens Re : theoretical resolvance of the grating

Note
This calculation page can not detect all unrealistic inputs.



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