Spatial confinement of electromagnetic hot and cold spots in gold nanocubes

Mohamed Haggui, Montacer Dridi, Jérôme Plain, Sylvie Marguet, Henri Perez, George C Schatz, Gary P. Wiederrecht, Stephen K. Gray, Renaud Bachelot

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

We report a near-field imaging study of colloidal gold nanocubes. This is accomplished through a photochemical imaging method in which molecular displacements are vectorial in nature, enabling sensitivity to the polarization of the optical near-field of the nanocubes. We analyze the confinement of both electromagnetic hot and "cold" spots with a resolution of Î/35 and emphasize the particularly high spatial confinement of cold spots. The concept of a cold spot complements the well-known electromagnetic hot spot but can have significant advantages. The application of the ultraconfined cold spots to high resolution imaging and spectroscopy is discussed.

Original languageEnglish
Pages (from-to)1299-1307
Number of pages9
JournalACS Nano
Volume6
Issue number2
DOIs
Publication statusPublished - Feb 28 2012

Fingerprint

Gold
near fields
gold
electromagnetism
Imaging techniques
complement
Gold Colloid
sensitivity
high resolution
polarization
Spectroscopy
Polarization
spectroscopy

Keywords

  • azobenzene
  • electromagnetic cold spots
  • electromagnetic hot spot
  • gold
  • nanocubes
  • near-field depolarization
  • near-field photochemical imaging
  • photoisomerization
  • plasmon

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Haggui, M., Dridi, M., Plain, J., Marguet, S., Perez, H., Schatz, G. C., ... Bachelot, R. (2012). Spatial confinement of electromagnetic hot and cold spots in gold nanocubes. ACS Nano, 6(2), 1299-1307. https://doi.org/10.1021/nn2040389

Spatial confinement of electromagnetic hot and cold spots in gold nanocubes. / Haggui, Mohamed; Dridi, Montacer; Plain, Jérôme; Marguet, Sylvie; Perez, Henri; Schatz, George C; Wiederrecht, Gary P.; Gray, Stephen K.; Bachelot, Renaud.

In: ACS Nano, Vol. 6, No. 2, 28.02.2012, p. 1299-1307.

Research output: Contribution to journalArticle

Haggui, M, Dridi, M, Plain, J, Marguet, S, Perez, H, Schatz, GC, Wiederrecht, GP, Gray, SK & Bachelot, R 2012, 'Spatial confinement of electromagnetic hot and cold spots in gold nanocubes', ACS Nano, vol. 6, no. 2, pp. 1299-1307. https://doi.org/10.1021/nn2040389
Haggui M, Dridi M, Plain J, Marguet S, Perez H, Schatz GC et al. Spatial confinement of electromagnetic hot and cold spots in gold nanocubes. ACS Nano. 2012 Feb 28;6(2):1299-1307. https://doi.org/10.1021/nn2040389
Haggui, Mohamed ; Dridi, Montacer ; Plain, Jérôme ; Marguet, Sylvie ; Perez, Henri ; Schatz, George C ; Wiederrecht, Gary P. ; Gray, Stephen K. ; Bachelot, Renaud. / Spatial confinement of electromagnetic hot and cold spots in gold nanocubes. In: ACS Nano. 2012 ; Vol. 6, No. 2. pp. 1299-1307.
@article{a64ef22249b84888b2176e9b313a9572,
title = "Spatial confinement of electromagnetic hot and cold spots in gold nanocubes",
abstract = "We report a near-field imaging study of colloidal gold nanocubes. This is accomplished through a photochemical imaging method in which molecular displacements are vectorial in nature, enabling sensitivity to the polarization of the optical near-field of the nanocubes. We analyze the confinement of both electromagnetic hot and {"}cold{"} spots with a resolution of {\^I}/35 and emphasize the particularly high spatial confinement of cold spots. The concept of a cold spot complements the well-known electromagnetic hot spot but can have significant advantages. The application of the ultraconfined cold spots to high resolution imaging and spectroscopy is discussed.",
keywords = "azobenzene, electromagnetic cold spots, electromagnetic hot spot, gold, nanocubes, near-field depolarization, near-field photochemical imaging, photoisomerization, plasmon",
author = "Mohamed Haggui and Montacer Dridi and J{\'e}r{\^o}me Plain and Sylvie Marguet and Henri Perez and Schatz, {George C} and Wiederrecht, {Gary P.} and Gray, {Stephen K.} and Renaud Bachelot",
year = "2012",
month = "2",
day = "28",
doi = "10.1021/nn2040389",
language = "English",
volume = "6",
pages = "1299--1307",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "2",

}

TY - JOUR

T1 - Spatial confinement of electromagnetic hot and cold spots in gold nanocubes

AU - Haggui, Mohamed

AU - Dridi, Montacer

AU - Plain, Jérôme

AU - Marguet, Sylvie

AU - Perez, Henri

AU - Schatz, George C

AU - Wiederrecht, Gary P.

AU - Gray, Stephen K.

AU - Bachelot, Renaud

PY - 2012/2/28

Y1 - 2012/2/28

N2 - We report a near-field imaging study of colloidal gold nanocubes. This is accomplished through a photochemical imaging method in which molecular displacements are vectorial in nature, enabling sensitivity to the polarization of the optical near-field of the nanocubes. We analyze the confinement of both electromagnetic hot and "cold" spots with a resolution of Î/35 and emphasize the particularly high spatial confinement of cold spots. The concept of a cold spot complements the well-known electromagnetic hot spot but can have significant advantages. The application of the ultraconfined cold spots to high resolution imaging and spectroscopy is discussed.

AB - We report a near-field imaging study of colloidal gold nanocubes. This is accomplished through a photochemical imaging method in which molecular displacements are vectorial in nature, enabling sensitivity to the polarization of the optical near-field of the nanocubes. We analyze the confinement of both electromagnetic hot and "cold" spots with a resolution of Î/35 and emphasize the particularly high spatial confinement of cold spots. The concept of a cold spot complements the well-known electromagnetic hot spot but can have significant advantages. The application of the ultraconfined cold spots to high resolution imaging and spectroscopy is discussed.

KW - azobenzene

KW - electromagnetic cold spots

KW - electromagnetic hot spot

KW - gold

KW - nanocubes

KW - near-field depolarization

KW - near-field photochemical imaging

KW - photoisomerization

KW - plasmon

UR - http://www.scopus.com/inward/record.url?scp=84857758409&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84857758409&partnerID=8YFLogxK

U2 - 10.1021/nn2040389

DO - 10.1021/nn2040389

M3 - Article

C2 - 22280022

AN - SCOPUS:84857758409

VL - 6

SP - 1299

EP - 1307

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 2

ER -