Spin-wave frequency combs

We experimentally demonstrate the generation of spin-wave frequency combs based on the nonlinear interaction of propagating spin waves in a microstructured waveguide. By means of time- and space-resolved Brillouin light scattering spectroscopy, we show that the simultaneous excitation of spin waves...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2022-09, Vol.121 (11)
Main Authors: Hula, T., Schultheiss, K., Gonçalves, F. J. T., Körber, L., Bejarano, M., Copus, M., Flacke, L., Liensberger, L., Buzdakov, A., Kákay, A., Weiler, M., Camley, R., Fassbender, J., Schultheiss, H.
Format: Article
Language:English
Subjects:
Applied physics
Magnons
Scattering
Wave propagation
Waveguides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We experimentally demonstrate the generation of spin-wave frequency combs based on the nonlinear interaction of propagating spin waves in a microstructured waveguide. By means of time- and space-resolved Brillouin light scattering spectroscopy, we show that the simultaneous excitation of spin waves with different frequencies leads to a cascade of four-magnon scattering events, which ultimately results in well-defined frequency combs. Their spectral weight can be tuned by the choice of amplitude and frequency of the input signals. Furthermore, we introduce a model for stimulated four-magnon scattering, which describes the formation of spin-wave frequency combs in the frequency and time domain.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0090033