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physical optics
fraunhofer diffraction


diffraction by a rectangular slit


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

ParameterValueunit
a
lam
div
diffraction by a rectangular slit
a : slit width lam : wavelength div : divergence of the diffracted wave ( corresponding to the divergence of the wave up to the first minimum of intensity )

Note
This calculation page can not detect all unrealistic inputs.



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