Interface and Bulk Standing Waves Drive the Coupling of Plasmonic Nanostar Antennas

Ted V. Tsoulos, Laura Fabris

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Finite element simulations of the optical behavior of gold nanostars in water reveal a new view of collective electron cloud oscillations, where localized surface plasmon resonances coexist with coherent delocalized interface waves, i.e., propagating surface plasmons. Gold nanostar spikes long enough to allow propagating polaritons and short enough to resonate with the spherical core serve as the substrate for the observed overlap between propagating modes and localized hot spots. Transverse plane plots reveal bulk polaritons coupled to surface ones. In light of these observations, we explore the mechanisms that drive plasmonic coupling in nanostars from the single spike level to multispiked and multiparticle systems.

Original languageEnglish (US)
Pages (from-to)28949-28957
Number of pages9
JournalJournal of Physical Chemistry C
Volume122
Issue number50
DOIs
StatePublished - Dec 20 2018

Fingerprint

standing waves
spikes
Gold
polaritons
antennas
Antennas
gold
electron clouds
Plasmons
Surface plasmon resonance
plasmons
surface plasmon resonance
plots
oscillations
Electrons
Water
Substrates
water
simulation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

@article{15bbfd7ce26247e5b873b7783b9de5a0,
title = "Interface and Bulk Standing Waves Drive the Coupling of Plasmonic Nanostar Antennas",
abstract = "Finite element simulations of the optical behavior of gold nanostars in water reveal a new view of collective electron cloud oscillations, where localized surface plasmon resonances coexist with coherent delocalized interface waves, i.e., propagating surface plasmons. Gold nanostar spikes long enough to allow propagating polaritons and short enough to resonate with the spherical core serve as the substrate for the observed overlap between propagating modes and localized hot spots. Transverse plane plots reveal bulk polaritons coupled to surface ones. In light of these observations, we explore the mechanisms that drive plasmonic coupling in nanostars from the single spike level to multispiked and multiparticle systems.",
author = "Tsoulos, {Ted V.} and Laura Fabris",
year = "2018",
month = "12",
day = "20",
doi = "10.1021/acs.jpcc.8b09263",
language = "English (US)",
volume = "122",
pages = "28949--28957",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "50",

}

Interface and Bulk Standing Waves Drive the Coupling of Plasmonic Nanostar Antennas. / Tsoulos, Ted V.; Fabris, Laura.

In: Journal of Physical Chemistry C, Vol. 122, No. 50, 20.12.2018, p. 28949-28957.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Interface and Bulk Standing Waves Drive the Coupling of Plasmonic Nanostar Antennas

AU - Tsoulos, Ted V.

AU - Fabris, Laura

PY - 2018/12/20

Y1 - 2018/12/20

N2 - Finite element simulations of the optical behavior of gold nanostars in water reveal a new view of collective electron cloud oscillations, where localized surface plasmon resonances coexist with coherent delocalized interface waves, i.e., propagating surface plasmons. Gold nanostar spikes long enough to allow propagating polaritons and short enough to resonate with the spherical core serve as the substrate for the observed overlap between propagating modes and localized hot spots. Transverse plane plots reveal bulk polaritons coupled to surface ones. In light of these observations, we explore the mechanisms that drive plasmonic coupling in nanostars from the single spike level to multispiked and multiparticle systems.

AB - Finite element simulations of the optical behavior of gold nanostars in water reveal a new view of collective electron cloud oscillations, where localized surface plasmon resonances coexist with coherent delocalized interface waves, i.e., propagating surface plasmons. Gold nanostar spikes long enough to allow propagating polaritons and short enough to resonate with the spherical core serve as the substrate for the observed overlap between propagating modes and localized hot spots. Transverse plane plots reveal bulk polaritons coupled to surface ones. In light of these observations, we explore the mechanisms that drive plasmonic coupling in nanostars from the single spike level to multispiked and multiparticle systems.

UR - http://www.scopus.com/inward/record.url?scp=85058958908&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058958908&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.8b09263

DO - 10.1021/acs.jpcc.8b09263

M3 - Article

AN - SCOPUS:85058958908

VL - 122

SP - 28949

EP - 28957

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 50

ER -