“Extraordinary” modulation instability in optics and hydrodynamics - Archive ouverte HAL Access content directly
Journal Articles Proceedings of the National Academy of Sciences of the United States of America Year : 2021

“Extraordinary” modulation instability in optics and hydrodynamics

Abstract

The classical theory of modulation instability (MI) attributed to Bespalov–Talanov in optics and Benjamin–Feir for water waves is just a linear approximation of nonlinear effects and has limitations that have been corrected using the exact weakly nonlinear theory of wave propagation. We report results of experiments in both optics and hydrodynamics, which are in excellent agreement with nonlinear theory. These observations clearly demonstrate that MI has a wider band of unstable frequencies than predicted by the linear stability analysis. The range of areas where the nonlinear theory of MI can be applied is actually much larger than considered here.
Fichier principal
Vignette du fichier
2009.03023.pdf (16.28 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03215313 , version 1 (03-05-2021)

Identifiers

Cite

Guillaume Vanderhaegen, Corentin Naveau, Pascal Szriftgiser, Alexandre Kudlinski, Matteo Conforti, et al.. “Extraordinary” modulation instability in optics and hydrodynamics. Proceedings of the National Academy of Sciences of the United States of America, 2021, 118 (14), pp.e2019348118. ⟨10.1073/pnas.2019348118⟩. ⟨hal-03215313⟩
12 View
2 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More