Microcavity One-Dimensional Magnetophotonic Crystals with Double Layer Iron Garnet

Abstract

In this work the results of investigation of microcavity one-dimensional magnetophotonic crystals GGG (111)/

Optical and magneto-optical properties of Bi substituted yttrium iron garnets prepared by metal organic decomposition

“…Magnetic garnets have attracted a considerable attention due to spintronic phenomena such as the spin Seebeck effect [1] and spin Hall magneto-resistance [2], or applications in integrated magneto-optical (MO) [3,4] and non-reciprocal photonic devices [5,6]. Yttrium iron garnets with high bismuth ion concentrations, Y 3-x Bi x Fe 5 O 12 (Bi:YIGs) exhibit very strong spin-orbit coupling caused by the presence of Bi resulting into a high MO figure of merit [7][8][9][10][11][12][13][14].…”

Magnetic properties of epitaxial bismuth ferrite-garnet mono- and bilayers

“…X-ray diffraction was used to control crystal structure of the targets and films. The thickness of the S1 film is chosen to be λ/ 4 and of the S2 film 3λ/4 as in for magnetophotonic crystals operating in visible spectrum range [4]. It has been shown previously [5] from the investigation of such films of different thicknesses that the diffusion layer for these films does not exceed 10 nm and the magnetic and magnetooptical properties of the films with chosen thicknesses are close to those for the bulk materials.…”

“…But a preparation of high quality films with high bismuth content (to provide strong Faraday rotation) on traditional substrates is quite problematic. It has been shown earlier [2][3][4] that iron garnet films with high bismuth concentration for magneto-photonic crystals can be grown on buffer sublayer with lower bismuth content. However due to numerous requirements to magnetooptic layers such as desired values of specific Faraday rotation, coercive force, compensation temperature, transmittance coefficient, hysteresis loop squareness, etc., it is practically impossible to get a perfect match between the lattice parameters of the films and substrates.…”

“…The parameters of the films are presented in Table 1. The composition of the films and their thickness are chosen to be close to that for the magneto-photonic crystals [4].…”

Magnetic control of waveguide modes of Bragg structures

“…In this case, the magnetization of layers modifies the light's polarization and/or phase velocity [8][9][10][11][12][13] and the resonant enhancement of magneto-optical effects may be observed [15][16][17][18]. The authors of Refs.…”