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Laser Photonics Rev., 1­15 (2012) / DOI 10.1002/lpor.201100031
LASER & PHOTONICS
REVIEWS
Abstract Non-Gaussian beam profiles such as Bessel or an-
nular beams enable novel approaches to modifying materials
through laser-based processing. In this review paper, proper-
ties, generation methods and emerging applications for non-
conventional beam shapes are discussed, including Bessel, an-
nular, and vortex beams. These intensity profiles have important
implications in a number of technologically relevant areas includ-
ing deep-hole drilling, photopolymerization and nanopatterning,
and introduce a new dimension for materials optimization and
fundamental studies of laser-matter interactions.
Bessel and annular beams for materials processing
Marti Duocastella and Craig B. Arnold*
1. Introduction
1.1. General laser processing

Source: Arnold, Craig B. - Department of Mechanical and Aerospace Engineering, Princeton University

Collections: Engineering; Materials Science