Fresnel diffraction and focusing properties of apertures under partially coherent illumination

1 May 1967

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation

Vol. 15 (3) , 480-481
https://doi.org/10.1109/tap.1967.1138927

Abstract

Fresnel diffraction from an aperture is investigated in order to determine how the focusing property of the aperture depends on the length of coherence of the illuminating field. The computations show how the focusing property becomes poorer as the coherence length decreases and the focus displaces itself toward the aperture.

Keywords

DIFFRACTION
LIGHTING
ANTENNAS AND PROPAGATION
NEAR-FIELD RADIATION PATTERN
APERTURE ANTENNAS
RADIO PROPAGATION
DELAY EFFECTS
ELECTROSTATIC PRECIPITATORS

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