Competition between phase-matching and stationarity in Kerr-driven optical pulse filamentation.
Experiments show that the spatiotemporal spectral broadening of an intense pump pulse in a Kerr medium in the presence of strong higher-order dispersion does not lead to symmetric profiles, and hence cannot be interpreted as standard modulational instability of a plane and monochromatic nonlinear eigenmode. The highly asymmetric features of the generated (K perpendicular,Omega) spectrum are due to odd-order dispersion terms and are interpreted in terms of spontaneous formation of stationary conical waves.
Faccio
Daniele
D
CNISM and Department of Physics and Mathematics, University of Insubria, Via Valleggio 11, 22100 Como, Italy. daniele.faccio@uninsubria.it
Averchi
Alessandro
A
Couairon
Arnaud
A
Dubietis
Audrius
A
Piskarskas
Rimtautas
R
Matijosius
Aidas
A
Bragheri
Francesca
F
Porras
Miguel A
MA
Piskarskas
Algis
A
Di Trapani
Paolo
P