Bessel and annular beams for materials processing
نویسندگان
چکیده
Non-Gaussian beam profiles such as Bessel or annular beams enable novel approaches to modifying materials through laser-based processing. In this review paper, properties, generation methods and emerging applications for nonconventional beam shapes are discussed, including Bessel, annular, and vortex beams. These intensity profiles have important implications in a number of technologically relevant areas including deep-hole drilling, photopolymerization and nanopatterning, and introduce a new dimension for materials optimization and fundamental studies of laser-matter interactions. R EV EW A R IC LE Bessel and annular beams for materials processing Marti Duocastella and Craig B. Arnold*
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