Nanogaps for SERS applications
Journal article, 2014
The nanogap is possibly the single most important physical entity in surface-enhanced Raman scattering. Nanogaps between noble metal nanostructures deliver extremely high electric field-enhancement, resulting in an extraordinary amplification of both the excitation rate and the emission rate of Raman active molecules situated in the gap. In some cases, the resulting surface-enhancement in the gap can be so high that Raman spectra from single molecules can be measured. Here, we briefly review some important concepts and experimental results on nanoscale gaps for SERS applications.
SPECTROSCOPY
SURFACE-ENHANCED RAMAN
PLASMON RESONANCE
PARTICLE PAIRS
METAL NANOPARTICLES
DIMERS
SCATTERING SERS
REMOTE-EXCITATION
POLARIZATION
GOLD NANOPARTICLES
Author
Lianming Tong
Chinese Academy of Sciences
H. X. Xu
Chinese Academy of Sciences
Mikael Käll
Chalmers, Applied Physics, Bionanophotonics
MRS Bulletin
0883-7694 (ISSN)
Vol. 39 2 163-168Subject Categories
Atom and Molecular Physics and Optics
Nano Technology
DOI
10.1557/mrs.2014.2