Enhancement of spontaneous and stimulated emission of a rhodamine 6G dye by an Ag aggregate
Date of this VersionJanuary 2006
The American Physical Society: Physical Review B 74, 184203 (2006)
This document has been peer-reviewed.
We have demonstrated that by adding the solution of aggregated silver nanoparticles to the solution of rhodamine 6G dye, one can enhance the efficiency of spontaneous and stimulated emission. We attribute an increase of the spontaneous emission intensity of dye to the increase of the absorption efficiency caused by the field enhancements in metallic nanostructures associated with surface plasmons. The enhancement of the stimulated emission of dye, which has the same nature as the enhancement of absorption, was observed in the pump-probe and laser experiments.