Authors
N.a Guillot, H.b Shen, B.a Fŕmaux, O.c Ṕron, E.c Rinnert, T.b Toury, M.a Lamy De LaChapelle,
Title
Surface enhanced Raman scattering optimization of gold nanocylinder arrays: Influence of the localized surface plasmon resonance and excitation wavelength
In
Applied Physics Letters
Volume
97
Issue
2
Year
2010
Publisher's URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-77955136147&partnerID=40&md5=721337952f5f90b2f6445d790f6d251b
Indexed by
Abstract
We here emphasize that the surface enhanced Raman scattering (SERS) intensity has to be optimized by choosing the appropriate gold nanoparticles size for two excitation wavelengths; 632.8 and 785 nm. We discuss the role of the position and of the order of the localized surface plasmon resonance (LSPR) in such optimization for both wavelengths. At 632.8 nm, the best SERS intensity is reached for a LSPR located between the excitation and Raman wavelengths whereas at 785 nm, the LSPR should be placed outside this range. The third order of LSPR is shown to have no influence on the SERS intensity. © 2010 American Institute of Physics.
Affiliations
Offprint