Cargando…

Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering

Mapping near-field profiles and dynamics of surface plasmon polaritons is crucial for understanding their fundamental optical properties and designing miniaturized photonic devices. This requires a spatial resolution on the sub-wavelength scale because the effective polariton wavelength is shorter t...

Descripción completa

Detalles Bibliográficos
Autores principales: Du, Luping, Lei, Dang Yuan, Yuan, Guanghui, Fang, Hui, Zhang, Xi, Wang, Qian, Tang, Dingyuan, Min, Changjun, Maier, Stefan A., Yuan, Xiaocong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3810658/
https://www.ncbi.nlm.nih.gov/pubmed/24165970
http://dx.doi.org/10.1038/srep03064
_version_ 1782288829708763136
author Du, Luping
Lei, Dang Yuan
Yuan, Guanghui
Fang, Hui
Zhang, Xi
Wang, Qian
Tang, Dingyuan
Min, Changjun
Maier, Stefan A.
Yuan, Xiaocong
author_facet Du, Luping
Lei, Dang Yuan
Yuan, Guanghui
Fang, Hui
Zhang, Xi
Wang, Qian
Tang, Dingyuan
Min, Changjun
Maier, Stefan A.
Yuan, Xiaocong
author_sort Du, Luping
collection PubMed
description Mapping near-field profiles and dynamics of surface plasmon polaritons is crucial for understanding their fundamental optical properties and designing miniaturized photonic devices. This requires a spatial resolution on the sub-wavelength scale because the effective polariton wavelength is shorter than free-space excitation wavelengths. Here by combining total internal reflection excitation with surface-enhanced Raman scattering imaging, we mapped at the sub-wavelength scale the spatial distribution of the dominant perpendicular component of surface plasmon fields in a metal nanoparticle-film system through spectrally selective and polarization-resolved excitation of the vertical gap mode. The lateral field-extension at the junction, which is determined by the gap-mode volume, is small enough to distinguish a spot size ~0.355λ(0) generated by a focused radially polarized beam with high reproducibility. The same excitation and imaging schemes are also used to trace near-field nano-focusing and interferences of surface plasmon polaritons created by a variety of plasmon lenses.
format Online
Article
Text
id pubmed-3810658
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-38106582013-10-29 Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering Du, Luping Lei, Dang Yuan Yuan, Guanghui Fang, Hui Zhang, Xi Wang, Qian Tang, Dingyuan Min, Changjun Maier, Stefan A. Yuan, Xiaocong Sci Rep Article Mapping near-field profiles and dynamics of surface plasmon polaritons is crucial for understanding their fundamental optical properties and designing miniaturized photonic devices. This requires a spatial resolution on the sub-wavelength scale because the effective polariton wavelength is shorter than free-space excitation wavelengths. Here by combining total internal reflection excitation with surface-enhanced Raman scattering imaging, we mapped at the sub-wavelength scale the spatial distribution of the dominant perpendicular component of surface plasmon fields in a metal nanoparticle-film system through spectrally selective and polarization-resolved excitation of the vertical gap mode. The lateral field-extension at the junction, which is determined by the gap-mode volume, is small enough to distinguish a spot size ~0.355λ(0) generated by a focused radially polarized beam with high reproducibility. The same excitation and imaging schemes are also used to trace near-field nano-focusing and interferences of surface plasmon polaritons created by a variety of plasmon lenses. Nature Publishing Group 2013-10-29 /pmc/articles/PMC3810658/ /pubmed/24165970 http://dx.doi.org/10.1038/srep03064 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Du, Luping
Lei, Dang Yuan
Yuan, Guanghui
Fang, Hui
Zhang, Xi
Wang, Qian
Tang, Dingyuan
Min, Changjun
Maier, Stefan A.
Yuan, Xiaocong
Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title_full Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title_fullStr Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title_full_unstemmed Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title_short Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering
title_sort mapping plasmonic near-field profiles and interferences by surface-enhanced raman scattering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3810658/
https://www.ncbi.nlm.nih.gov/pubmed/24165970
http://dx.doi.org/10.1038/srep03064
work_keys_str_mv AT duluping mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT leidangyuan mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT yuanguanghui mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT fanghui mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT zhangxi mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT wangqian mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT tangdingyuan mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT minchangjun mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT maierstefana mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering
AT yuanxiaocong mappingplasmonicnearfieldprofilesandinterferencesbysurfaceenhancedramanscattering