Open AccessMagnetic interaction in all silicon waveguide spherical coupler device
Author(s) -
Lei Shi,
F. Meseguer
Publication year - 2012
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.20.022616
Subject(s) - finite difference time domain method , metamaterial , silicon , optics , magnetic field , waveguide , dielectric , excited state , materials science , optoelectronics , physics , atomic physics , quantum mechanics
The magnetic field component of light in dielectric materials generally plays a negligible role at optical frequency values. However, it is a key component of metal based metamaterials. Here we report on the dominant role of the magnetic interaction in a dielectric spherical silicon nanocavity coupled to a silicon waveguide. The analytical method, as well as the finite difference time domain (FDTD) simulation, show a three dimensional (3D) magnetic trap effect when the magnetic like Mie resonances of the nanocavity are excited.