Abstract

In the framework of laser-induced micro- and nanoscale material modification, we present results on ultrafast Bessel beam-glass interaction, inducing extended length scale material modification on single-shot basis. The possibility of high-level energy localization using non-diffractive Bessel beams has been shown using chirped pulses and moderate focusing conditions, drawing attentions in the fields of nonlinear optics and large volume material processing [1, 2]. Here, we show how ultrashort Bessel laser pulse interacts with fused silica glass in a tight focusing geometry and the follow-up material relaxation over a broad range of temporal domain i.e. ns – μs. The consequence of such interaction in terms of ultimate material transformation will be discussed.

© 2017 Japan Society of Applied Physics, Optical Society of America