Visualization of localized intense optical fields in single gold-nanoparticle assemblies and ultrasensitive raman active sites

Kohei Imura; Hiromi Okamoto; Mohammad K. Hossain; Masahiro Kitajima

doi:10.1021/nl061650p

Visualization of localized intense optical fields in single gold-nanoparticle assemblies and ultrasensitive raman active sites

Kohei Imura, Hiromi Okamoto^*, Mohammad K. Hossain, Masahiro Kitajima

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

230 Scopus citations

Abstract

We demonstrate visualization of localized intense electromagnetic fields in real space in well-tailored dimeric and trimeric gold nanospheres by using near-field optical techniques. With two-photon induced luminescence and Raman measurements, we show that the electric field is confined at an interstitial site in the aggregate. We also demonstrate optical switching operations for the electric-field localized sites in the trimer structure.

Original language	English
Pages (from-to)	2173-2176
Number of pages	4
Journal	Nano Letters
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/nl061650p
State	Published - Oct 2006
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl061650p

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title = "Visualization of localized intense optical fields in single gold-nanoparticle assemblies and ultrasensitive raman active sites",

abstract = "We demonstrate visualization of localized intense electromagnetic fields in real space in well-tailored dimeric and trimeric gold nanospheres by using near-field optical techniques. With two-photon induced luminescence and Raman measurements, we show that the electric field is confined at an interstitial site in the aggregate. We also demonstrate optical switching operations for the electric-field localized sites in the trimer structure.",

author = "Kohei Imura and Hiromi Okamoto and Hossain, \{Mohammad K.\} and Masahiro Kitajima",

year = "2006",

month = oct,

doi = "10.1021/nl061650p",

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AU - Imura, Kohei

AU - Okamoto, Hiromi

AU - Hossain, Mohammad K.

AU - Kitajima, Masahiro

PY - 2006/10

Y1 - 2006/10

N2 - We demonstrate visualization of localized intense electromagnetic fields in real space in well-tailored dimeric and trimeric gold nanospheres by using near-field optical techniques. With two-photon induced luminescence and Raman measurements, we show that the electric field is confined at an interstitial site in the aggregate. We also demonstrate optical switching operations for the electric-field localized sites in the trimer structure.

AB - We demonstrate visualization of localized intense electromagnetic fields in real space in well-tailored dimeric and trimeric gold nanospheres by using near-field optical techniques. With two-photon induced luminescence and Raman measurements, we show that the electric field is confined at an interstitial site in the aggregate. We also demonstrate optical switching operations for the electric-field localized sites in the trimer structure.

UR - https://www.scopus.com/pages/publications/33750505173

U2 - 10.1021/nl061650p

DO - 10.1021/nl061650p

M3 - Article

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AN - SCOPUS:33750505173

SN - 1530-6984

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EP - 2176

JO - Nano Letters

JF - Nano Letters

IS - 10

ER -

Visualization of localized intense optical fields in single gold-nanoparticle assemblies and ultrasensitive raman active sites

Abstract

ASJC Scopus subject areas

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