"Optical excitation of multiple standing spin modes in three-dimensiona" by Daria O. Ignatyeva, Denis M. Krichevsky et al.
 

Optical excitation of multiple standing spin modes in three-dimensional optomagnonic nanocavities

Document Type

Article

Publication Date

3-11-2024

Department

Department of Physics

Abstract

We report the experimental observation of multiple standing spin modes in a three-dimensional (3D) optomagnonic nanocavity formed by a nanometer-sized iron-garnet nanocylinder. We show that launching of the standing spin modes is achieved due to a high confinement of the optically generated effective magnetic field caused by the localized optical resonance. Quantization and spin-wave mode inhomogeneity are achieved in each of the three spatial dimensions. The presented approach opens horizons for 3D optomagnonics by combining nanophotonic and magnonic functionalities within a single nanocavity.

Publication Title

Physical Review Applied

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