Plasmonic enhancement of the two photon absorption cross section of an organic chromophore using polyelectrolyte-coated gold nanorods

Sean T. Sivapalan; Jarrett H. Vella; Timothy K. Yang; Matthew J. Dalton; Rachel N. Swiger; Joy E. Haley; Thomas M. Cooper; Augustine M. Urbas; Loon Seng Tan; Catherine J. Murphy

doi:10.1021/la300762k

Plasmonic enhancement of the two photon absorption cross section of an organic chromophore using polyelectrolyte-coated gold nanorods

Sean T. Sivapalan, Jarrett H. Vella, Timothy K. Yang, Matthew J. Dalton, Rachel N. Swiger, Joy E. Haley, Thomas M. Cooper, Augustine M. Urbas, Loon Seng Tan, Catherine J. Murphy

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

Abstract

The effect of plasmonic enhancement on the two-photon absorption cross section of organic chromophores attached to polyelectrolyte-coated gold nanorods was investigated. The magnitudes of such enhancements were confirmed using single and two photon excitations of the chromophore molecules bound to polyelectrolyte-coated gold nanorods. By synthesizing two-, four-, six-, and eight-polyelectrolyte layer coated nanorods of a particular aspect ratio, the distance dependence of the evanescent electromagnetic field on molecular two-photon absorption was observed. Enhancements of 40-fold were observed for the chromophores nearest to the surface.

Original language	English (US)
Pages (from-to)	9147-9154
Number of pages	8
Journal	Langmuir
Volume	28
Issue number	24
DOIs	https://doi.org/10.1021/la300762k
State	Published - Jun 19 2012

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la300762k

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title = "Plasmonic enhancement of the two photon absorption cross section of an organic chromophore using polyelectrolyte-coated gold nanorods",

abstract = "The effect of plasmonic enhancement on the two-photon absorption cross section of organic chromophores attached to polyelectrolyte-coated gold nanorods was investigated. The magnitudes of such enhancements were confirmed using single and two photon excitations of the chromophore molecules bound to polyelectrolyte-coated gold nanorods. By synthesizing two-, four-, six-, and eight-polyelectrolyte layer coated nanorods of a particular aspect ratio, the distance dependence of the evanescent electromagnetic field on molecular two-photon absorption was observed. Enhancements of 40-fold were observed for the chromophores nearest to the surface.",

author = "Sivapalan, {Sean T.} and Vella, {Jarrett H.} and Yang, {Timothy K.} and Dalton, {Matthew J.} and Swiger, {Rachel N.} and Haley, {Joy E.} and Cooper, {Thomas M.} and Urbas, {Augustine M.} and Tan, {Loon Seng} and Murphy, {Catherine J.}",

year = "2012",

month = jun,

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doi = "10.1021/la300762k",

language = "English (US)",

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pages = "9147--9154",

journal = "Langmuir",

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T1 - Plasmonic enhancement of the two photon absorption cross section of an organic chromophore using polyelectrolyte-coated gold nanorods

AU - Sivapalan, Sean T.

AU - Vella, Jarrett H.

AU - Yang, Timothy K.

AU - Dalton, Matthew J.

AU - Swiger, Rachel N.

AU - Haley, Joy E.

AU - Cooper, Thomas M.

AU - Urbas, Augustine M.

AU - Tan, Loon Seng

AU - Murphy, Catherine J.

PY - 2012/6/19

Y1 - 2012/6/19

N2 - The effect of plasmonic enhancement on the two-photon absorption cross section of organic chromophores attached to polyelectrolyte-coated gold nanorods was investigated. The magnitudes of such enhancements were confirmed using single and two photon excitations of the chromophore molecules bound to polyelectrolyte-coated gold nanorods. By synthesizing two-, four-, six-, and eight-polyelectrolyte layer coated nanorods of a particular aspect ratio, the distance dependence of the evanescent electromagnetic field on molecular two-photon absorption was observed. Enhancements of 40-fold were observed for the chromophores nearest to the surface.

AB - The effect of plasmonic enhancement on the two-photon absorption cross section of organic chromophores attached to polyelectrolyte-coated gold nanorods was investigated. The magnitudes of such enhancements were confirmed using single and two photon excitations of the chromophore molecules bound to polyelectrolyte-coated gold nanorods. By synthesizing two-, four-, six-, and eight-polyelectrolyte layer coated nanorods of a particular aspect ratio, the distance dependence of the evanescent electromagnetic field on molecular two-photon absorption was observed. Enhancements of 40-fold were observed for the chromophores nearest to the surface.

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Plasmonic enhancement of the two photon absorption cross section of an organic chromophore using polyelectrolyte-coated gold nanorods

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