A study on the spectral characteristics of surface enhanced Raman scattering based on far-field extinction and near-field electromagnetic field intensity of 2D nanostructures

2014 ◽  
Vol 46 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Keng H. Hsu ◽  
Nicholas Fang ◽  
Kin-hung Fung
Keyword(s):  
Electromagnetic Field ◽  
Raman Scattering ◽  
Field Intensity ◽  
Near Field ◽  
Spectral Characteristics ◽  
Surface Enhanced Raman Scattering ◽  
Far Field ◽  
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

Surface-Enhanced Raman Scattering Fiber-Optic Sensor

1990 ◽  
Vol 44 (1) ◽  
pp. 63-69 ◽  
Author(s):  
J. M. Bello ◽  
T. Vo-Dinh
Keyword(s):  
Raman Scattering ◽  
Fiber Optic ◽  
Limit Of Detection ◽  
Spectral Characteristics ◽  
Surface Enhanced Raman Scattering ◽  
Fiber Optic Sensor ◽  
Optic Sensor ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A fiber-optic system was developed for exciting and collecting surface-enhanced Raman scattering (SERS) signals generated from a sensing plate tip having silver-coated microparticles deposited on a glass support. Various fiber parameters, such as fiber type, fiber-substrate geometry, and other experimental parameters, were investigated to obtain the optimum conditions for the SERS fiber-optic device. In addition, analytical figures of merit relevant to the performance of the SERS fiber-optic sensor, such as SERS spectral characteristics, reproducibility, linear dynamic range, and limit of detection, were also investigated.

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.

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
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