Abstract
Ultrafast laser cutting of a glass substrate at an oblique angle is demonstrated using a phase-corrected Bessel beam. Simulations are used to predetermine the ideal phase of the incident Bessel beam such that an unaberrated Bessel beam is formed inside the tilted substrate. Additional corrections to the beam such as shortening, moving the intensity of the beam within the substrate, and the formation of an elliptical focal spot were necessary to ensure consistent chamfering of the substrate and are discussed herein. Three cuts are combined to create a damage tract in the glass substrate in the shape of a chamfer, and then the glass is separated using a ${\rm CO}_2$ laser resulting in a chamfered edge.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Juozas Dudutis, Jokūbas Pipiras, Rokas Stonys, Eimantas Daknys, Artūras Kilikevičius, Albinas Kasparaitis, Gediminas Račiukaitis, and Paulius Gečys
Opt. Express 28(21) 32133-32151 (2020)
Juozas Dudutis, Miglė Mackevičiūtė, Jokūbas Pipiras, Rokas Stonys, Valdemar Stankevič, Gediminas Račiukaitis, and Paulius Gečys
Opt. Express 30(2) 1860-1874 (2022)
Decheng Zhang, Jianjun Yang, Jiaxuan Liu, Lingling Shui, Xinjian Pan, and Yuqian Li
Appl. Opt. 62(29) 7873-7880 (2023)