Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3631756
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Funding
- Deutsche Forschungsgemeinschaft
- European Grant Master [NMP-FP7 212257]
- Australian Research Council, DEST
- DIISR Australia India Strategic Research Fund [ST020078]
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By using phase-resolved micro-focus Brillouin light scattering spectroscopy, we demonstrate experimentally a phenomenon of wavelength conversion of spin waves propagating in tapered Permalloy waveguides. We show that this phenomenon enables efficient excitation of spin waves with sub-micrometer wavelengths being much smaller than the width of the microstrip antenna used for the excitation. The proposed excitation mechanism removes restrictions on the spin-wave wavelength imposed by the size of the antenna and enables improvement of performances of integrated magnonic devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3631756]
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