Surface enhanced resonance Raman and luminescence on plasmon active nanostructured cavities

TL;DR

This study investigates how the excitation angle affects surface-enhanced Raman and luminescence signals on plasmonic nanocavity arrays, revealing angle-dependent plasmonic enhancement effects.

Contribution

It demonstrates the angle-dependent behavior of Raman and luminescence intensities on plasmon-active nanostructured cavities, highlighting the role of cavity supported plasmon modes.

Findings

Raman and luminescence intensities depend on excitation angle

Both signals show angle-dependent enhancement effects

Cavity supported plasmon modes influence scattering and emission

Abstract

Presented here are studies of the impact of excitation angle on surface enhanced Raman and luminescence spectroscopy of dye immobilised on a plasmon active nanocavity array support. Results show that both Raman and luminescence intensities depend on the angle of incidence consistent with the presence of cavity supported plasmon modes. Dependence of scattering or emission intensity with excitation angle occurs over the window of observation.