Femtosecond intrapulse evolution of the magneto-optic Kerr effect in magnetoplasmonic crystals
Optics
2015-06-22 v1 Mesoscale and Nanoscale Physics
Abstract
In magnetoplasmonics, it is possible to tailor the magneto-optical properties of nanostructures by exciting surface plasmon polaritons (SPPs). Thus far, magnetoplasmonic effects have been considered static. Here, we describe ultrafast manifestations of magnetoplasmonics by observing the non-trivial evolution of the transverse magneto-optic Kerr effect within 45-fs pulses reflected from an iron-based magnetoplasmonic crystal. The effect occurs for resonant SPP excitations, displays opposite time derivative signs for different slopes of the resonance, and is explained with the magnetization-dependent dispersion relation of SPPs.
Keywords
Cite
@article{arxiv.1407.5845,
title = {Femtosecond intrapulse evolution of the magneto-optic Kerr effect in magnetoplasmonic crystals},
author = {M. R. Shcherbakov and P. P. Vabishchevich and A. Yu. Frolov and T. V. Dolgova and A. A. Fedyanin},
journal= {arXiv preprint arXiv:1407.5845},
year = {2015}
}
Comments
5 pages, 4 figures