Abstract
Red, Green and Blue Multi wavelength lasing is desired in two dimensional flexible plasmonic multi-layer structure based on light emitting polymers and gold nanostructure. For this purpose, gold nano-structure is covered by three different light emitting polymers with poly-vinyl-pyrolydone as spacer layers. To achieve multi-wavelengths random laser, these six layers are coated over the poly-dimethyl siloxane substrate by main surface roughness and the sample is pumped by nanosecond green laser. The lasing due to band-edge lattice plasmons in arrays of plasmonic nano rods in a homogeneous environment is collected by spectrometer. Our results show emission peaks for every wavelength region with the minimum value of threshold lasing and the maximum of emission intensity.
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