Plasmonic magneto-optical nested 2D nanostructures: Tailoring responses through effective refractive index
| Autor: | K. M. Khabarov, Alexander V. Baryshev, A. N. Shaimanov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Nanostructure business.industry Yttrium iron garnet Physics::Optics 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics Polarization (waves) 01 natural sciences Electronic Optical and Magnetic Materials Magneto optical Condensed Matter::Materials Science chemistry.chemical_compound chemistry Lattice (order) 0103 physical sciences Optoelectronics 0210 nano-technology business Effective refractive index Plasmon |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 485:54-60 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2019.04.039 |
| Popis: | Nested square 2D lattice of gold nanospheres encased in a film of bismuth-substituted yttrium iron garnet (Bi:YIG) have been studied. Symmetry, structural and dielectric parameters of such nanostructures have been found to define the number of plasmon resonances and their spectral positions. As compared with a conventional film of Bi:YIG, the magneto-optical response of the studied nanostructures considerably increases due to the plasmon resonances, and the sign of polarization rotation is defined by a configuration of the localized near fields. Also, we demonstrate that, due to the nested arrangement, the optical and magneto-optical responses of the nanostructures can be strongly altered with a negligible change in their structural parameters. |
| Databáze: | OpenAIRE |
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