Scientific article
Open access

Multiple filamentation of non-uniformly focused ultrashort laser pulses

Published inApplied physics. B, Lasers and optics, vol. 94, no. 2, p. 243-247
  • Open Access - Licence nationale Springer
Publication date2009

We propose the impingement of non-uniform wavefront curvature as a simple way to improve the longitudinal homogeneity of the plasma density along filaments generated by ultrashort laser pulses. We characterize multiple filamentation of a multiterawatt beam with different wavefront curvatures applied to specific regions in the transverse beam profile. In adequate conditions, the filamenting region is more homogeneously ionized, in the longitudinal direction, than in the case of uniform focusing. Moreover, the ionization maximum is located between the middle and the two thirds of the filaments in all investigated chirps and focus configurations.

Citation (ISO format)
HAO, Z. Q. et al. Multiple filamentation of non-uniformly focused ultrashort laser pulses. In: Applied physics. B, Lasers and optics, 2009, vol. 94, n° 2, p. 243–247. doi: 10.1007/s00340-008-3328-4
Main files (1)
Article (Published version)
ISSN of the journal0946-2171

Technical informations

Creation06/16/2014 1:39:00 PM
First validation06/16/2014 1:39:00 PM
Update time03/14/2023 9:21:20 PM
Status update03/14/2023 9:21:20 PM
Last indexation05/02/2024 3:19:57 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack