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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Veröffentlicht in:Applied physics letters 2016-07, Vol.109 (4)
Hauptverfasser: Sadovnikov, A. V., Beginin, E. N., Morozova, M. A., Sharaevskii, Yu. P., Grishin, S. V., Sheshukova, S. E., Nikitov, S. A.
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Sprache:eng
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Zusammenfassung: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