Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Propagation of three-dimensional bipolar ultrashort electromagnetic pulses in an inhomogeneous array of carbon nanotubes

Abstract :

We study the propagation of three-dimensional (3D) bipolar ultrashort electromagnetic pulses in an inhomogeneous array of semiconductor carbon nanotubes. The heterogeneity is represented by a planar region with an increased concentration of conduction electrons. The evolution of the electromagnetic field and electron concentration in the sample are governed by the Maxwell’s equations and continuity equation. In particular, nonuniformity of the electromagnetic field along the axis of the nanotubes is taken into account. We demonstrate that depending on values of the parameters of the electromagnetic pulse approaching the region with the higher electron concentration, the pulse is either reflected from the region or passes it. Specifically, our simulations demonstrate that after interacting with the higher-concentration area, the pulse can propagate steadily, without significant spreading. The possibility of such ultrashort electromagnetic pulses propagating in arrays of carbon nanotubes over distances significantly exceeding characteristic dimensions of the pulses makes it possible to consider them as 3D solitons.

Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [59 références]  Voir  Masquer  Télécharger

https://hal.univ-angers.fr/hal-02572834
Contributeur : Okina Université d'Angers <>
Soumis le : mercredi 13 mai 2020 - 19:33:07
Dernière modification le : mercredi 14 octobre 2020 - 04:17:03

Fichier

physreva.97.043814.2018.pdf
Accord explicite pour ce dépôt

Identifiants

Collections

Citation

Eduard Fedorov, Alexander Zhukov, Roland Bouffanais, Alexander Timashkov, Boris Malomed, et al.. Propagation of three-dimensional bipolar ultrashort electromagnetic pulses in an inhomogeneous array of carbon nanotubes. Physical Review A, American Physical Society 2018, 97 (4), pp.043814. ⟨10.1103/PhysRevA.97.043814⟩. ⟨hal-02572834⟩

Partager

Métriques

Consultations de la notice

42

Téléchargements de fichiers

47