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physical optics
fraunhofer diffraction


diffraction by two rectangular slits observed in the back focal plane of a lens


Caution
Fill in all input cells.
Choose all parameters unit.
All parameters are positive.

InputValueunit
a
c
lam
fi
OutputValueUnit
Dato be calculated
Dcto be calculated
diffraction by two rectangular slits observed in the back focal plane of a lens
a : slits thickness c : distance between slits centers lam : wavelength fi : effective focal length of the lens Da : width of the brightest band in the diffracted pattern envelope Dc : interference pitch

Note
This calculation page can not detect all unrealistic inputs.



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