Picosecond laser filamentation in air

Andreas Schmitt-Sody (1) , Heiko Kurz (2) , L Bergé (3) , Stefan Skupin (4) , Pavel Polynkin (5)

1 AFRL - Air Force Research Laboratory
2 Leibniz Universität Hannover=Leibniz University Hannover
3 DAM/DIF - DAM Île-de-France
4 CELIA - Centre d'Etudes Lasers Intenses et Applications
5 University of Arizona

We show that in picosecond laser filamentation in air, impact ionization mechanism facilitates the formation of dense yet continuous plasma channels. At a given pulse duration, optical fluence is independent on the pulse energy.

Domaines: Optique [physics.optics]; Physique Atomique [physics.atom-ph]; Physique des plasmas [physics.plasm-ph]

Andreas Schmitt-Sody, Heiko Kurz, L Bergé, Stefan Skupin, Pavel Polynkin. Picosecond laser filamentation in air. European Quantum Electronics Conference, Jun 2015, Munich, Germany. pp.EE_P_1. ⟨hal-01205539⟩