Self-pinching of pulsed laser beams during filamentary propagation

authored by
Carsten Bree, Ayhan Demircan, Stefan Skupin, Luc Berge, Günter Steinmeyer
Abstract

Competing nonlinear optical effects that act on femtosecond laser pulses propagating in a self-generated light filament may give rise to a pronounced radial beam deformation, similar to the z-pinch contraction of pulsed high-current discharges. This self-generated spatial beam contraction is accompanied by a pulse break-up that can be beneficially exploited for on-axis temporal compression of the pulse. The pinching mechanism therefore explains the recently observed self-compression and the complicated spatio-temporal shapes typical for filament propagation experiments.

External Organisation(s)
Weierstrass Institute for Applied Analysis and Stochastics (WIAS) Weierstraß-Institut für Angewandte Analysis und Stochastik (WIAS) Leibniz-Institute in Forschungsverbund Berlin e. V.
Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy im Forschungsbund Berlin e.V. (MBI)
Max Planck Institute for the Physics of Complex Systems
Friedrich Schiller University Jena
French Alternative Energies and Atomic Energy Commission (CEA)
Type
Article
Journal
Optics express
Volume
17
Pages
16429-16435
No. of pages
7
ISSN
1094-4087
Publication date
14.09.2009
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Electronic version(s)
https://doi.org/10.1364/OE.17.016429 (Access: Open)