Magnon-Optic Effects with Spin-Wave Leaky Modes: Tunable Goos-Hänchen Shift and Wood’s Anomaly
Krzysztof Sobucki,
Wojciech Śmigaj,
Piotr Graczyk
et al.
Abstract:We demonstrate numerically how a spin wave (SW) beam
obliquely
incident on the edge of a thin film placed below a ferromagnetic stripe
can excite leaky SWs guided along the stripe. During propagation,
leaky waves emit energy back into the layer in the form of plane waves
and several laterally shifted parallel SW beams. This resonance excitation,
combined with interference effects of the reflected and re-emitted
waves, results in the magnonic Wood’s anomaly and a significant
increase of the Goos-Hänchen shift … Show more
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