Phase control of two-color filamentation

An original way to control the nonlinear propagation of an intense pulse is presented. The co-propagation of a weak third-harmonic pulse with an intense laser pulse experiencing filamentation allows control of the nonlinear propagation of the latter. Because of quantum interference during the two-co...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2015-09, Vol.48 (18), p.184005-7
Main Authors: Doussot, J, Béjot, P, Karras, G, Billard, F, Faucher, O
Format: Article
Language:English
Subjects:
Asymptotic properties
Channels
filamentation
Interference
Lasers
Mathematical analysis
Mathematical models
Nonlinearity
Phase control
third-harmonic
Tuning
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An original way to control the nonlinear propagation of an intense pulse is presented. The co-propagation of a weak third-harmonic pulse with an intense laser pulse experiencing filamentation allows control of the nonlinear propagation of the latter. Because of quantum interference during the two-color ionisation process, the latter can be significantly enhanced or suppressed by a simple tuning of the relative phase between the two fields. As a first application, we demonstrate the production and control of an axially modulated plasma channel. Finally, an analytical formula describing the two-color ionisation rate as a function of the relative phase and intensity of the two fields is presented and tested in a propagation code. The numerical results successfully reproduce the experimental ones.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/48/18/184005