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physical optics
fraunhofer diffraction


diffraction by a circular aperture observed in the back focal plane of a lens


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

ParameterValueunit
D
fi
lam
Dd
diffraction by a circular aperture observed in the back focal plane of a lens
D : aperture diameter fi : effective focal length of the lens lam : wavelength Dd : diameter of the central spot of the diffracted wave in the back focal plane

Note
This calculation page can not detect all unrealistic inputs.



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