Asymmetric Magneto-Optical Rotation in Magnetoplasmonic Nanocomposites

Nonlocal nonlinear magneto-optical response of a magnetoplasmonic crystal

Optical and magneto-optical properties of gold core cobalt shell magnetoplasmonic nanowire arrays.

In this work we present core-shell nanowire arrays of gold coated with a nanometric layer of cobalt. Despite the extremely small Co volume, these core-shell nanowires display large magneto-optical activity and plasmonic resonance determined by the geometry of the structure. Therefore, we are able to tune both the plasmonic and magneto-optical response in the visible range. Through optical and e...

Controlling Magneto-Optical Rotation via Atomic Coherences

An isotropic medium, having magnetic sublevels, when subjected to a magnetic field or an electromagnetic field can induce anisotropy in the medium; and as a result the plane of polarization of the probe field can rotate. Therefore the rotation due to the magnetic field alone, can be controlled efficiently with use of a coherent field. We show, using a control field, significant enhancement of t...

Magneto-optical Faraday activity in transparent FeCo- sepiolite/polystyrene nanocomposites

FeCo nanoparticles synthesized on sepiolite microparticles were used for the preparation of nanocomposites by melt compounding with polystyrene. Both, the sepiolite fibers and the nanoparticles were free of agglomeration, which allowed preparing nanocomposites with a homogeneous dispersion of the second phases, avoiding the usual agglomeration of the nanoparticles and minimizing light scatterin...

Monolithic Magneto-Optical Nanocomposites of Barium Hexaferrite Platelets in PMMA

The incorporation of magnetic barium hexaferrite nanoparticles in a transparent polymer matrix of poly(methyl methacrylate) (PMMA) is reported for the first time. The barium hexaferrite nanoplatelets doped with Sc(3+), i.e., BaSc0.5Fe11.5O12 (BaHF), having diameters in the range 20 to 130 nm and thicknesses of approximately 5 nm, are synthesized hydrothermally and stabilized in 1-butanol with d...