Imaging of Bessel filaments in fused silica and impact on modelling the underling light-matter physics
Résumé
We have developed a strategy to image the nonlinear propagation of high-intensityfemtosecond pulses while they propagate in fused silica. We have studied the propagation ofBessel beams in the regime where they allow for drilling high-aspect ratio nanochannels in singleshot. Experimental results provide useful insights for the modelling.