Open AccessAberration-controlled Bessel beam processing of glass
Author(s) -
Juozas Dudutis,
Rokas Stonys,
Gediminas Račiukaitis,
Paulius Gečys
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.003627
Subject(s) - axicon , optics , bessel beam , tilt (camera) , beam (structure) , bessel function , perpendicular , symmetry (geometry) , physics , beam expander , materials science , optical axis , laser , lens (geology) , laser beams , mathematics , geometry
It is known that Bessel beam generation with a non-ideal axicon induces beam pattern distortions. In this paper, we introduce a simple method for non-ideal axicon-generated Bessel beam reconstruction by tilting the axicon perpendicular to its optical axis. We found an optimum axicon tilt angle where beam distortions can be compensated by inducing additional astigmatic aberrations. At optimal tilt angle, the central spot symmetry and focal depth was increased. By this method we could control crack formation symmetry in the bulk of glass, which is essential for many transparent material processing applications.