Open AccessOptimized plasmonic nanostructures for improved sensing activities
Author(s) -
Hong Shen,
Nicolas Guillot,
Jérémy R. Rouxel,
Marc Lamy de la Chapelle,
Timothée Toury
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.021278
Subject(s) - plasmon , surface plasmon resonance , materials science , raman scattering , nanostructure , nanotechnology , polarization (electrochemistry) , surface plasmon , optical sensing , surface enhanced raman spectroscopy , raman spectroscopy , optoelectronics , optics , nanoparticle , chemistry , physics
The paper outlines the optimization of plasmonic nanostructures in order to improve their sensing properties such as their sensitivity and their ease of manipulation. The key point in this study is the optimization of the localized surface plasmon resonance (LSPR) properties essential to the sensor characteristics, and more especially for surface-enhanced Raman scattering (SERS). Two aspects were considered in order to optimize the sensing performance: apolar plasmonic nanostructures for non polarization dependent detection and improvements of SERS sensitivity by using a molecular adhesion layer between gold nanostructures and glass. Both issues could be generalized to all plasmon-resonance-based sensing applications.