Directional surface plasmon coupled luminescence for analytical sensing applications: which metal, what wavelength, what observation angle?

ABSTRACT: The ability of luminescent species in the near-field to both induce and couple to surface plasmons has been known for many years, with highly directional emission from films (Surface Plasmon Coupled Luminescence, SPCL) facilitating the development of sensitive near-field assay sensing platforms, to name but just one application. Because of the near-field nature of the effect, only luminescent species (fluorescence, chemiluminescence and phosphorescence) within a few hundred nanometers from the surface play a role in coupling, which in terms of biosensing, provides for limited penetration into optically dense media, such as in whole blood. Another attractive feature is the highly polarized and angular dependent emission which allows both fixed angle and wavelength dependent emission angles

SUBMITTER: Aslan K 

PROVIDER: S-EPMC2846183 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature