Open AccessNonlinear envelope equation modeling of sub-cycle dynamics and harmonic generation in nonlinear waveguides
Author(s) -
Goëry Genty,
Paul Kinsler,
Bertrand Kibler,
John M. Dudley
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.005382
Subject(s) - supercontinuum , physics , nonlinear system , envelope (radar) , attosecond , optics , high harmonic generation , electric field , carrier envelope phase , nonlinear optics , nonlinear schrödinger equation , self phase modulation , quantum mechanics , optical fiber , telecommunications , ultrashort pulse , laser , photonic crystal fiber , radar , computer science
We describe generalized nonlinear envelope equation modeling of sub-cycle dynamics on the underlying electric field carrier during one-dimensional propagation in fused silica. Generalized envelope equation simulations are shown to be in excellent quantitative agreement with the numerical integration of Maxwell's equations, even in the presence of shock dynamics and carrier steepening on a sub-50 attosecond timescale. In addition, by separating the effects of self-phase modulation and third harmonic generation, we examine the relative contribution of these effects in supercontinuum generation in fused silica nanowire waveguides.