Coatings with graded transmission, placed near the rims of conical lenses and perhaps other axicons, provide apodization that removes the axial intensity variations in Bessel-type optical beams.
© 1992 Optical Society of America
Original Manuscript: September 6, 1991
Published: October 1, 1992
Roger M. Herman and T. A. Wiggins, "Apodization of diffractionless beams," Appl. Opt. 31, 5913-5915 (1992)