Filamentation of Bessel–Gauss pulses propagating in borosilicate glass is found to produce damage lines extending over hundreds of micrometers and consisting of discrete, equidistant damage spots. These discrete damage traces are explained by self-regeneration of Gauss–Bessel beams during propagation and are potentially applicable in laser microfabrication of transparent materials.
© 2006 Optical Society of America
Eugenijus Gaizauskas, Egidijus Vanagas, Vygandas Jarutis, Saulius Juodkazis, Vygantas Mizeikis, and Hiroaki Misawa, "Discrete damage traces from filamentation of Gauss-Bessel pulses," Opt. Lett. 31, 80-82 (2006)