Physics – Optics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jopt...22..185b&link_type=abstract
Journal of Optics (Paris), Vol. 22, No. 4, p. 185 - 191
Physics
Optics
1
Scientific paper
The diffraction of a plane wave through a Gaussian-apodized annular aperture lens is investigated. It is shown that in the focal plane of the lens, the amplitude distribution is the product of a zero-order Bessel function and a Gaussian. The field distribution around the geometrical focus is then investigated when a variety of parameters, such as the Fresnel number and the obscuration ratio of the aperture are varied.
Bhabu S. J.
Tingchung Poon
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