Enhancement of surface plasmons in an Ag aggregate by optical gain in a dielectric medium.
We have observed the compensation of loss in a metal by a gain in a dielectric medium in the mixture of an Ag aggregate and a Rhodamine 6G dye. The demonstrated sixfold enhancement of the Rayleigh scattering is the evidence of the enhancement of the surface-plasmon resonance. The reported experimental observation facilitates many applications of nanoplasmonics.
Noginov
M A
MA
Center for Materials Research, Norfolk State University, Norfolk, Virginia 23504, USA. mnoginov@nsu.edu
Zhu
G
G
Bahoura
M
M
Adegoke
J
J
Small
C E
CE
Ritzo
B A
BA
Drachev
V P
VP
Shalaev
V M
VM