Titre :

Parametric excitation of multiple resonant radiations from localized wavepackets

Auteur(s) :

Conforti, Matteo [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Trillo, Stefano [Auteur]
Engineering Department [Ferrara]
Mussot, Arnaud [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Kudlinski, Alexandre [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Titre de la revue :

SCIENTIFIC REPORTS

Éditeur :

Nature Publishing Group

Date de publication :

2015-08

ISSN :

2045-2322

Discipline(s) HAL :

Physique [physics]/Physique [physics]/Optique [physics.optics]
Science non linéaire [physics]/Formation de Structures et Solitons [nlin.PS]

Résumé en anglais : [en]

Fundamental physical phenomena such as laser-induced ionization, driven quantum tunneling, Faraday waves, Bogoliubov quasiparticle excitations, and the control of new states of matter rely on time-periodic driving of the ...
Lire la suite >Fundamental physical phenomena such as laser-induced ionization, driven quantum tunneling, Faraday waves, Bogoliubov quasiparticle excitations, and the control of new states of matter rely on time-periodic driving of the system. A remarkable property of such driving is that it can induce the localized (bound) states to resonantly couple to the continuum. Therefore experiments that allow for enlightening and controlling the mechanisms underlying such coupling are of paramount importance. We implement such an experiment in a special optical fiber characterized by a dispersion oscillating along the propagation coordinate, which mimics ''time''. The quasi-momentum associated with such periodic perturbation is responsible for the efficient coupling of energy from the localized wave-packets (solitons in anomalous dispersion and shock fronts in normal dispersion) sustained by the fiber nonlinearity, into free-running linear dispersive waves (continuum) at multiple resonant frequencies. Remarkably, the observed resonances can be explained by means of a unified approach, regardless of the fact that the localized state is a soliton-like pulse or a shock front.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Projet ANR :

Fibres optiques pour les hauts Flux

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL