Q-factor and absorption enhancement for plasmonic anisotropic nanoparticles

Date

2016-08-01

Authors

Liu, Wei
Lei, Bing
Miroshnichenko, Andrey

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

Abstract

We investigate the scattering and absorption properties of anisotropic metal-dielectric core-shell nanoparticles. It is revealed that the radially anisotropic dielectric layer can accelerate the evanescent decay of the localized resonant surface modes, leading to Q-factor and absorption rate enhancement. Moreover, the absorption cross section can be maximized to reach the single resonance absorption limit. We further show that such artificial anisotropic cladding materials can be realized by isotropic layered structures, which may inspire many applications based on scattering and absorption of plasmonic nanoparticles.

Description

Keywords

Scattering, Particles, Surface plasmons, Anisotropic optical materials

Citation

Source

Optics letters

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

DOI

10.1364/OL.41.003563

Restricted until