Nonlinear spin wave coupling in adjacent magnonic crystals

We have experimentally studied the coupling of spin waves in the adjacent magnonic crystals. Space- and time-resolved Brillouin light-scattering spectroscopy is used to demonstrate the frequency and intensity dependent spin-wave energy exchange between the side-coupled magnonic crystals. The experim...

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Bibliographic Details
Published in:Applied physics letters 2016-07, Vol.109 (4)
Main Authors: Sadovnikov, A. V., Beginin, E. N., Morozova, M. A., Sharaevskii, Yu. P., Grishin, S. V., Sheshukova, S. E., Nikitov, S. A.
Format: Article
Language:English
Subjects:
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computer simulation
COMPUTERIZED SIMULATION
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
COUPLING
CRYSTALS
ENERGY TRANSFER
LIGHT SCATTERING
Luminous intensity
Magnons
NONLINEAR PROBLEMS
Periodic structures
PERIODICITY
PHASE SHIFT
PROCESSING
Signal processing
SIGNALS
SPECTROSCOPY
SPIN
SPIN WAVES
TIME RESOLUTION
Wave power
WAVE PROPAGATION
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Summary:We have experimentally studied the coupling of spin waves in the adjacent magnonic crystals. Space- and time-resolved Brillouin light-scattering spectroscopy is used to demonstrate the frequency and intensity dependent spin-wave energy exchange between the side-coupled magnonic crystals. The experiments and the numerical simulation of spin wave propagation in the coupled periodic structures show that the nonlinear phase shift of spin wave in the adjacent magnonic crystals leads to the nonlinear switching regime at the frequencies near the forbidden magnonic gap. The proposed side-coupled magnonic crystals represent a significant advance towards the all-magnonic signal processing in the integrated magnonic circuits.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4960195