Development and Application of Surface Plasmon Polaritons on Optical Amplification
Figure 8
(a) Experimental configuration: thin PMMA film doped with PbS QDs on top of a 50 nm thick gold film. Excitation of a probe SPP beam ( nm) is achieved through a grating. Inset shows a calculated distribution of the intensity of the pump beam ( nm) inside the PMMA layer. (b) Leakage-radiation microscopy image of a probe SPP beam. The dashed circle shows the position where the pump beam is focused.
