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Fresnel diffraction
(redirected from Fresnel diffraction pattern)

    Also found in: Wikipedia 0.01 sec.
Fresnel diffraction [frā′nel di′frak·shən]
(optics)
Diffraction in which the source of light or the observing screen are at a finite distance from the aperture or obstacle.
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Sa-c), below, is less tedious than implementing Lommel's analytical solution of the Fresnel diffraction pattern of circular apertures in terms of infinite series of Bessel functions (2).
Issues in optical diffraction theory by Mielenz, Klaus D. / Journal of Research of the National Institute of Standards and Technology
Similarly, the reverse Fresnel field is zero for z > 0 and equal to a Fresnel diffraction pattern superimposed on the reflected geometrical field for z < 0.
Optical diffraction in close proximity to plane apertures. III. ... by Mielenz, Klaus D. / Journal of Research of the National Institute of Standards and Technology
 
 
 
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