Abstract
Theoretical topics encountered in engineering analysis of
diffraction-free beams are addressed. These topics are the
following: synthesizing a class of diffraction-free beams with
noncircular transverse irradiance distributions, e.g., elliptical
beams; the effect of Gaussian apodization on sidelobe control; and mode
selection that allows one to synthesize a nearly diffraction-free beam
with a certain depth of field. The focusing properties of
Bessel–Gaussian beams will be investigated the future.
© 2001 Optical Society of America
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