Extreme Events through Prevailing Backscattering and Their Suppression by a Focusing Nonlinearity

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Schultheiß V, Wimmer M, Malzer S, Peschel U
Zeitschrift: Physical Review X
Jahr der Veröffentlichung: 2018
Band: 8
Heftnummer: 1
ISSN: 2160-3308


Abstract

We investigate linear and nonlinear light propagation in weakly perturbed AlGaAs slab waveguides whose fabrication induced local defects give rise to random multiple scattering. The statistical evaluation of the intensity distribution at the rear facet reveals an abundance of high-amplitude events in the linear regime, contradicting the predictions of the central limit theorem by far. In this article we propose weak successive backscattering to be a generator of high-amplitude events, while a focusing nonlinearity of the Kerr type counterintuitively diminishes them, thus effectively randomizing the intensity distribution. We support our experimental findings with numerical simulations based on the stray matrix approach introduced by Edrei et al. [Phys. Rev. Lett. 62, 2120 (1989)]. This novel proposed mechanism for the formation of extreme events in the context of linear wave dynamics represents the first encounter of the phenomenon in the limit of weak scattering.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Malzer, Stefan Dr.
Institut für Physik der Kondensierten Materie
Schultheiß, Vincent
Institut für Optik, Information und Photonik
Wimmer, Martin
Lehrstuhl für Experimentalphysik (Optik)


Einrichtungen weiterer Autorinnen und Autoren

Friedrich-Schiller-Universität Jena


Zitierweisen

APA:
Schultheiß, V., Wimmer, M., Malzer, S., & Peschel, U. (2018). Extreme Events through Prevailing Backscattering and Their Suppression by a Focusing Nonlinearity. Physical Review X, 8(1). https://dx.doi.org/10.1103/PhysRevX.8.011017

MLA:
Schultheiß, Vincent, et al. "Extreme Events through Prevailing Backscattering and Their Suppression by a Focusing Nonlinearity." Physical Review X 8.1 (2018).

BibTeX: 

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