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

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Luping Du ◽  
Dang Yuan Lei ◽  
Guanghui Yuan ◽  
Hui Fang ◽  
Xi Zhang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Near Field ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Surface-enhanced Raman scattering (SERS) as probe of plasmonic near-field resonances

2018 ◽  
Vol 99 ◽  
pp. 34-43 ◽  
Author(s):  
Adriana Santinom ◽  
Mateus A. da Silva ◽  
Javier E.L. Villa ◽  
Ronei J. Poppi ◽  
Italo O. Mazali ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Near Field ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Probing the plasmonic near-field by one- and two-photon excited surface enhanced Raman scattering

2013 ◽  
Vol 4 ◽  
pp. 834-842 ◽  
Author(s):  
Katrin Kneipp ◽  
Harald Kneipp
Keyword(s):  
Raman Scattering ◽  
Photon Energy ◽  
Near Field ◽  
Single Molecules ◽  
Surface Enhanced Raman Scattering ◽  
Plasmonic Nanostructures ◽  
Two Photon ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Strongly enhanced and spatially confined near-fields in the vicinity of plasmonic nanostructures open up exciting new capabilities for photon-driven processes and particularly also for optical spectroscopy. Surface enhanced Raman signatures of single molecules can provide us with important information about the optical near-field. We discuss one- and two-photon excited surface enhanced Raman scattering at the level of single molecules as a tool for probing the plasmonic near-field of silver nanoaggregates. The experiments reveal enhancement factors of local fields in the hottest hot spots of the near-field and their dependence on the photon energy. Also, the number of the hottest spots and their approximate geometrical size are found. Near-field amplitudes in the hottest spots can be enhanced by three orders of magnitudes. Nanoaggregates of 100 nm dimensions provide one hot spot on this highest enhancement level where the enhancement is confined within less than 1nm dimension. The near-field enhancement in the hottest spots increases with decreasing photon energy.

Direct Imaging of Surface-Enhanced Raman Scattering in the Near Field

Langmuir ◽  
2005 ◽  
Vol 21 (2) ◽  
pp. 520-523 ◽  
Author(s):  
Peng Zhang ◽  
Steve Smith ◽  
Garry Rumbles ◽  
Michael E. Himmel
Keyword(s):  
Raman Scattering ◽  
Near Field ◽  
Surface Enhanced Raman Scattering ◽  
Direct Imaging ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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