Open AccessIntegrated metaphotonics: symmetries and confined excitation of LSP resonances in a single metallic nanoparticle
Author(s) -
Ricardo Téllez-Limón,
Babak Bahari,
Li-Yi Hsu,
Junhee Park,
Ashok Kodigala,
Boubacar Kanté
Publication year - 2016
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.24.013875
Subject(s) - nanophotonics , metamaterial , plasmon , optics , waveguide , excitation , excited state , resonance (particle physics) , dielectric , photonics , materials science , coupled mode theory , dipole , physics , optoelectronics , refractive index , atomic physics , quantum mechanics
Using numerical simulations, we demonstrate that the dipolar plasmonic resonance of a single metallic nanoparticle inserted in the core of a dielectric waveguide can be excited with higher order photonic modes of the waveguide only if their symmetry is compatible with the charge distribution of the plasmonic mode. For the case of a symmetric waveguide, we demonstrate that this condition is only achieved if the particle is shifted from the center of the core. The simple and comprehensive analysis presented in this contribution will serve as basis for applications in integrated nanophotonic/metamaterials devices, such as optical filters, modulators and mode converters.