Control of electric field localization by three-dimensional bowtie nanoantennae

Ari D. Mayevsky, Alison M. Funston

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The three-dimensional morphological control of the individual metallic nanocrystals in a coupled structure imposes an electric field localization and enhancement in all three dimensions. We exploit the unique morphology of chemically synthesized nanotriangle monomers to form assembled dimers with a bowtie-like morphology in two orthogonal planes, effectively minimizing the volume of the interaction space to a point. The antenna has a longitudinal mode at 893 nm (1.39 eV), a 294 nm (0.68 eV) red shift compared to a monomer of equivalent size. This is indicative of extremely strong coupling because of the three-dimensional confinement of the electric field within the nanogap. By changing the geometry of the nanotriangle dimer, the longitudinal mode is tunable within a 220 nm (0.45 eV) range. The distribution of the electric field in the interparticle space transitions from a localized point for a bowtie to a more distributed line for an inverted bowtie.

Original languageEnglish
Pages (from-to)18012-18020
Number of pages9
JournalJournal of Physical Chemistry C
Volume122
Issue number31
DOIs
Publication statusPublished - 9 Aug 2018

Cite this

@article{e3443f8e3a0c47309a7b5e82561c80c9,
title = "Control of electric field localization by three-dimensional bowtie nanoantennae",
abstract = "The three-dimensional morphological control of the individual metallic nanocrystals in a coupled structure imposes an electric field localization and enhancement in all three dimensions. We exploit the unique morphology of chemically synthesized nanotriangle monomers to form assembled dimers with a bowtie-like morphology in two orthogonal planes, effectively minimizing the volume of the interaction space to a point. The antenna has a longitudinal mode at 893 nm (1.39 eV), a 294 nm (0.68 eV) red shift compared to a monomer of equivalent size. This is indicative of extremely strong coupling because of the three-dimensional confinement of the electric field within the nanogap. By changing the geometry of the nanotriangle dimer, the longitudinal mode is tunable within a 220 nm (0.45 eV) range. The distribution of the electric field in the interparticle space transitions from a localized point for a bowtie to a more distributed line for an inverted bowtie.",
author = "Mayevsky, {Ari D.} and Funston, {Alison M.}",
year = "2018",
month = "8",
day = "9",
doi = "10.1021/acs.jpcc.8b05805",
language = "English",
volume = "122",
pages = "18012--18020",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "31",

}

Control of electric field localization by three-dimensional bowtie nanoantennae. / Mayevsky, Ari D.; Funston, Alison M.

In: Journal of Physical Chemistry C, Vol. 122, No. 31, 09.08.2018, p. 18012-18020.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Control of electric field localization by three-dimensional bowtie nanoantennae

AU - Mayevsky, Ari D.

AU - Funston, Alison M.

PY - 2018/8/9

Y1 - 2018/8/9

N2 - The three-dimensional morphological control of the individual metallic nanocrystals in a coupled structure imposes an electric field localization and enhancement in all three dimensions. We exploit the unique morphology of chemically synthesized nanotriangle monomers to form assembled dimers with a bowtie-like morphology in two orthogonal planes, effectively minimizing the volume of the interaction space to a point. The antenna has a longitudinal mode at 893 nm (1.39 eV), a 294 nm (0.68 eV) red shift compared to a monomer of equivalent size. This is indicative of extremely strong coupling because of the three-dimensional confinement of the electric field within the nanogap. By changing the geometry of the nanotriangle dimer, the longitudinal mode is tunable within a 220 nm (0.45 eV) range. The distribution of the electric field in the interparticle space transitions from a localized point for a bowtie to a more distributed line for an inverted bowtie.

AB - The three-dimensional morphological control of the individual metallic nanocrystals in a coupled structure imposes an electric field localization and enhancement in all three dimensions. We exploit the unique morphology of chemically synthesized nanotriangle monomers to form assembled dimers with a bowtie-like morphology in two orthogonal planes, effectively minimizing the volume of the interaction space to a point. The antenna has a longitudinal mode at 893 nm (1.39 eV), a 294 nm (0.68 eV) red shift compared to a monomer of equivalent size. This is indicative of extremely strong coupling because of the three-dimensional confinement of the electric field within the nanogap. By changing the geometry of the nanotriangle dimer, the longitudinal mode is tunable within a 220 nm (0.45 eV) range. The distribution of the electric field in the interparticle space transitions from a localized point for a bowtie to a more distributed line for an inverted bowtie.

UR - http://www.scopus.com/inward/record.url?scp=85051550169&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.8b05805

DO - 10.1021/acs.jpcc.8b05805

M3 - Article

VL - 122

SP - 18012

EP - 18020

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 31

ER -