Open AccessWide tunability of magnetoplasmonic crystals due to excitation of multiple waveguide and plasmon modes
Author(s) -
A. L. Chekhov,
V. L. Krutyanskiy,
A. N. Shaimanov,
A. I. Stognij,
Т. В. Мурзина
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.017762
Subject(s) - materials science , excitation , optics , plasmon , grating , surface plasmon polariton , surface plasmon , optoelectronics , polariton , layer (electronics) , diffraction grating , photonic crystal , etching (microfabrication) , waveguide , magnetic field , nanotechnology , physics , quantum mechanics , electrical engineering , engineering
Magnetoplasmonic crystals (MPC) composed of a 1D gold grating on top of a magnetic garnet layer made by a combined ion-beam etching technique are studied. We demonstrate that this method allows to make high-quality MPC. It is shown that MPC with a 30-40 nm thick perforated gold layer provides an effective excitation of two surface plasmon-polariton modes and several numbers of waveguide modes in the garnet layer. An enhancement of the transversal magneto-optical effect up to the value of 10(-2) is observed for all types of resonant modes, that propagate in the magnetic layer, due to magnetic-field control over the mode excitation which is promising for future photonic devices.