Particles and nanovoids for plasmonics

Benjamin Sierra-Martin; Antonio Fernandez-Barbero

doi:10.1016/j.cis.2021.102394

Particles and nanovoids for plasmonics

Adv Colloid Interface Sci. 2021 Apr:290:102394. doi: 10.1016/j.cis.2021.102394. Epub 2021 Feb 27.

Authors

Benjamin Sierra-Martin¹, Antonio Fernandez-Barbero²

Affiliations

¹ Applied Physics Section, University of Almeria, 04120 Almeria, Spain. Electronic address: bsierra@ual.es.
² Applied Physics Section, University of Almeria, 04120 Almeria, Spain; Institute of Applied Chemical Sciences, Universidad Autonoma de Chile, 8320000 Santiago, Chile. Electronic address: afernand@ual.es.

PMID: 33711675
DOI: 10.1016/j.cis.2021.102394

Abstract

This article reviews and compares the optical properties of metallic nanoparticles and nanovoids, which have received great attention due to their ability to generate and control plasmon resonances. These systems are capable of concentrating and manipulating the fields at nanometer scale, being very attractive as building blocks for emerging applications. Metal particles and nanovoids present different plasmonics modes, strongly dependent on the size, shape and nature of the metal and dielectric. Specific geometrical features, as the presence of rims, make the nanovoids very promising structures to design exotic band spectra because of the coupling between different resonant modes.

Keywords: Light-enhanced; Nanocavities; Nanoparticles; Polaritons; Surface plasmons.

Publication types

Review