Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/6051
Title: | Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering | Authors: | Du, L Lei, DY Yuan, G Fang, H Zhang, X Wang, Q Tang, D Min, C Maier, SA Yuan, X |
Issue Date: | 29-Oct-2013 | Source: | Scientific reports, 29 Oct. 2013, 3, 3064 | Abstract: | 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,0.355λ₀ 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. | Keywords: | Microscopy Nanophotonics and plasmonics |
Publisher: | Nature Publishing Group | Journal: | Scientific reports | EISSN: | 2045-2322 | DOI: | 10.1038/srep03064 | Rights: | Du, L. et al. Mapping plasmonic near-field profiles and interferences by surface-enhanced Raman scattering. Sci. Rep. 3, 3064; DOI:10.1038/srep03064 (2013). 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 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Du_Mapping_Plasmonic_Near-field.pdf | 737.14 kB | Adobe PDF | View/Open |
Page views
138
Last Week
2
2
Last month
Citations as of Oct 13, 2024
Downloads
156
Citations as of Oct 13, 2024
SCOPUSTM
Citations
53
Last Week
0
0
Last month
2
2
Citations as of Oct 17, 2024
WEB OF SCIENCETM
Citations
48
Last Week
0
0
Last month
2
2
Citations as of Oct 17, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.