Applications of femtosecond Bessel beams to laser ablation

International audienceNondiffracting Bessel beams have been recently applied to single shot ultrafast laser processing of high aspect ratio nanochannels.We review the principles and benefits of nondiffracting Bessel beams for material processing, and we compare experimental results with numerical simulations. We show how the stationarity of nonlinear propagation of ultrafast laser pulses allows high aspect ratio material processing