Two-dimensional array of iron-garnet nanocylinders supporting localized and lattice modes for the broadband boosted magneto-optics

Author:

Zimnyakova Polina E.12ORCID,Ignatyeva Daria O.234ORCID,Karki Dolendra5ORCID,Voronov Andrey A.12ORCID,Shaposhnikov Alexander N.4,Berzhansky Vladimir N.4,Levy Miguel5,Belotelov Vladimir I.234

Affiliation:

1. Moscow Institute of Physics and Technology, National Research University , Dolgoprudny , Moscow 141701 , Russia

2. Russian Quantum Center , Moscow , Russia

3. Faculty of Physics , M.V. Lomonosov Moscow State University , Moscow , Russia

4. V.I. Vernadsky Crimean Federal University , Simferopol , Russia

5. Physics Department , Michigan Technological University , Houghton , USA

Abstract

Abstract We demonstrate a novel all-dielectric magnetophotonic structure that consists of two-dimensional arrays of bismuth substituted iron-garnet nanocylinders supporting both localized (Fabry–Perot-like) and lattice (guided-like) optical modes. Simultaneous excitation of the two kinds of modes provides a significant enhancement of the Faraday effect by 3 times and transverse magneto-optical Kerr effect by an order of magnitude compared to the smooth magnetic film of the same effective thickness. Both magneto-optical effects are boosted in wide spectral and angular ranges making the nanocylinder array magnetic dielectric structures promising for applications with short and tightly focused laser pulses.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

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