Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure

Highly enhanced Raman scattering of graphene on a plasmonic nano-structure platform is demonstrated. The plasmonic platform consists of silver nano-structures in a periodic array on top of a gold mirror. The gold mirror is used to move the hot spot to the top surface of the silver nano-structures, w...

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Main Authors:	Khorasaninejad, M., Raeis-Zadeh, S. M., Jafarlou, S., Wesolowski, M. J., Daley, C. R., Flannery, J. B., Forrest, J., Safavi-Naeini, S., Saini, S. S.
Format:	Online
Language:	English
Published:	Nature Publishing Group 2013
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3796293/

id	pubmed-3796293
recordtype	oai_dc
spelling	pubmed-37962932013-10-18 Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure Khorasaninejad, M. Raeis-Zadeh, S. M. Jafarlou, S. Wesolowski, M. J. Daley, C. R. Flannery, J. B. Forrest, J. Safavi-Naeini, S. Saini, S. S. Article Highly enhanced Raman scattering of graphene on a plasmonic nano-structure platform is demonstrated. The plasmonic platform consists of silver nano-structures in a periodic array on top of a gold mirror. The gold mirror is used to move the hot spot to the top surface of the silver nano-structures, where the graphene is located. Two different nano-structures, ring and crescent, are studied. The actual Raman intensity is enhanced by a factor of 890 for the G-peak of graphene on crescents as compared to graphene on a silicon dioxide surface. The highest enhancement is observed for the G-peak as compared to the 2D-peak. The results are quantitatively well-matched with a theoretical model using an overlap integral of incident electric field intensities with the corresponding intensities of Raman signals at the G- and 2D-peaks. The interaction of light with nano-structures is simulated using finite element method (FEM). Nature Publishing Group 2013-10-14 /pmc/articles/PMC3796293/ /pubmed/24121787 http://dx.doi.org/10.1038/srep02936 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Khorasaninejad, M. Raeis-Zadeh, S. M. Jafarlou, S. Wesolowski, M. J. Daley, C. R. Flannery, J. B. Forrest, J. Safavi-Naeini, S. Saini, S. S.
spellingShingle	Khorasaninejad, M. Raeis-Zadeh, S. M. Jafarlou, S. Wesolowski, M. J. Daley, C. R. Flannery, J. B. Forrest, J. Safavi-Naeini, S. Saini, S. S. Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
author_facet	Khorasaninejad, M. Raeis-Zadeh, S. M. Jafarlou, S. Wesolowski, M. J. Daley, C. R. Flannery, J. B. Forrest, J. Safavi-Naeini, S. Saini, S. S.
author_sort	Khorasaninejad, M.
title	Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
title_short	Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
title_full	Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
title_fullStr	Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
title_full_unstemmed	Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure
title_sort	highly enhanced raman scattering of graphene using plasmonic nano-structure
description	Highly enhanced Raman scattering of graphene on a plasmonic nano-structure platform is demonstrated. The plasmonic platform consists of silver nano-structures in a periodic array on top of a gold mirror. The gold mirror is used to move the hot spot to the top surface of the silver nano-structures, where the graphene is located. Two different nano-structures, ring and crescent, are studied. The actual Raman intensity is enhanced by a factor of 890 for the G-peak of graphene on crescents as compared to graphene on a silicon dioxide surface. The highest enhancement is observed for the G-peak as compared to the 2D-peak. The results are quantitatively well-matched with a theoretical model using an overlap integral of incident electric field intensities with the corresponding intensities of Raman signals at the G- and 2D-peaks. The interaction of light with nano-structures is simulated using finite element method (FEM).
publisher	Nature Publishing Group
publishDate	2013
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3796293/
_version_	1612018117153652736

Highly Enhanced Raman Scattering of Graphene using Plasmonic Nano-Structure

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