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Surface enhanced coherent anti-Stokes Raman scattering on nanostructured gold surfaces

Surface enhanced coherent anti-Stokes Raman scattering on nanostructured gold surfaces
Surface enhanced coherent anti-Stokes Raman scattering on nanostructured gold surfaces
Coherent anti-Stokes Raman spectroscopy (CARS) is a well-known tool in multiphoton imaging and nonlinear spectroscopy. In this work we combine CARS with plasmonic surface enhancement on reproducible nanostructured surfaces. We demonstrate strong correlation between plasmon resonances and surface-enhanced CARS (SECARS) intensities on our nanostructured surfaces and show that an enhancement of 105 can be obtained over standard CARS. Furthermore, we find SECARS to be >103 times more sensitive than surface-enhanced Raman Spectroscopy (SERS). We also demonstrate SECARS imaging of molecular monolayers. Our work paves the way for reliable single molecule Raman spectroscopy and fast molecular imaging on plasmonic surfaces

1530-6984
5339-5343
Steuwe, Christian
3159a908-1c1c-42b0-9140-ecbdddb3cbbf
Kaminski, Clemens F.
3d075bb8-2e01-4664-8c81-b013922cc15f
Baumberg, Jeremy J.
51423b5f-bdb8-4851-8d50-472253ceb12c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Steuwe, Christian
3159a908-1c1c-42b0-9140-ecbdddb3cbbf
Kaminski, Clemens F.
3d075bb8-2e01-4664-8c81-b013922cc15f
Baumberg, Jeremy J.
51423b5f-bdb8-4851-8d50-472253ceb12c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9

Steuwe, Christian, Kaminski, Clemens F., Baumberg, Jeremy J. and Mahajan, Sumeet (2011) Surface enhanced coherent anti-Stokes Raman scattering on nanostructured gold surfaces. Nano Letters, 11 (12), 5339-5343. (doi:10.1021/nl202875w).

Record type: Article

Abstract

Coherent anti-Stokes Raman spectroscopy (CARS) is a well-known tool in multiphoton imaging and nonlinear spectroscopy. In this work we combine CARS with plasmonic surface enhancement on reproducible nanostructured surfaces. We demonstrate strong correlation between plasmon resonances and surface-enhanced CARS (SECARS) intensities on our nanostructured surfaces and show that an enhancement of 105 can be obtained over standard CARS. Furthermore, we find SECARS to be >103 times more sensitive than surface-enhanced Raman Spectroscopy (SERS). We also demonstrate SECARS imaging of molecular monolayers. Our work paves the way for reliable single molecule Raman spectroscopy and fast molecular imaging on plasmonic surfaces

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Published date: 10 November 2011
Organisations: Chemistry, Physics & Astronomy

Identifiers

Local EPrints ID: 340200
URI: http://eprints.soton.ac.uk/id/eprint/340200
ISSN: 1530-6984
PURE UUID: 29235a1a-c0b1-41b8-a59c-be81e8ef934e
ORCID for Sumeet Mahajan: ORCID iD orcid.org/0000-0001-8923-6666

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Date deposited: 15 Jun 2012 07:53
Last modified: 18 Feb 2021 17:09

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