Nanogaps for SERS applications
Magazine 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.

SURFACE-ENHANCED RAMAN

METAL NANOPARTICLES

SPECTROSCOPY

GOLD NANOPARTICLES

PLASMON RESONANCE

DIMERS

POLARIZATION

PARTICLE PAIRS

REMOTE-EXCITATION

SCATTERING SERS

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 2 163-168

Subject Categories

Atom and Molecular Physics and Optics

Nano Technology

DOI

10.1557/mrs.2014.2

More information

Created

10/8/2017