Optical excitation of multiple standing spin modes in 3D optomagnonic
  nanocavities

Ignatyeva, Daria O.; Krichevsky, Denis M.; Karki, Dolendra; Kolosvetov, Anton; Zimnyakova, Polina E.; Shaposhnikov, Alexander N.; Berzhansky, Vladimir N.; Levy, Miguel; Chernov, Alexander I.; Belotelov, Vladimir I.

doi:10.48550/arXiv.2310.01974

Optical excitation of multiple standing spin modes in 3D optomagnonic nanocavities

https://doi.org/10.48550/arXiv.2310.01974
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posted on 2023-10-05, 16:01 authored by Daria O. Ignatyeva, Denis M. Krichevsky, Dolendra Karki, Anton Kolosvetov, Polina E. Zimnyakova, Alexander N. Shaposhnikov, Vladimir N. Berzhansky, Miguel Levy, Alexander I. Chernov, Vladimir I. Belotelov

We report the first experimental observation of multiple standing spin modes in 3D optomagnonic nanocavity formed by nanometer-sized iron-garnet nanocylinder. We show that launching of 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 is achieved in each of the three spatial dimensions. The presented approach opens new horizons of 3D optomagnonics by combining nanophotonic and magnonic functionalities within a single nanocavity.

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Optical excitation of multiple standing spin modes in 3D optomagnonic nanocavities

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