Coupling between a sub-wavelength optical cavity and a plasmonic nanostructure probed by SERS

Julien Proust (1) , Anna Rumyantseva (1) , David Gosztola (2) , Serguei Kochtcheev (1) , Jean-Louis Bijeon (1) , Renaud Bachelot (1) , Gary Wiederrecht (2) , Jerome Plain (1)

1 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique
2 ANL - Argonne National Laboratory [Lemont]

We report on the utilization of optical sub-wavelength quasi Fabry-Perot cavity coupled with the Raman microscopy to study the interaction between the localized surface plasmon resonance of gold nanoparticles and the surface plasmon resonance of a gold film. We show an enhancement of the Fabry-Perot oscillations when the distance between nanoparticle and gold film decrease.

Keywords: Gold; Localized surface plasmon resonance; Raman spectroscopy; Surface enhanced Raman scattering; Surface plasmon resonance; Field enhancement

Domains: Optics / Photonic; Micro and nanotechnologies/Microelectronics

Julien Proust, Anna Rumyantseva, David Gosztola, Serguei Kochtcheev, Jean-Louis Bijeon, et al.. Coupling between a sub-wavelength optical cavity and a plasmonic nanostructure probed by SERS. META12, Apr 2012, Paris, France. ⟨hal-02462944⟩