The results of experimental studies the fluorescence response polylactide foams saturated with rhodamine 6G and composites used for their preparation in region transition from spontaneous to stochastic laser generation are presented. A small increase threshold foamed compared expected one is interpreted as a result contribution waveguide mode propagation polymer matrix.. Keywords: foam, fluores...

We investigate the surface-enhanced Raman scattering (SERS) of rhodamine 6G (R6G) adsorbed on Au nanoparticles attached to InP nanowires. We find that nanowire arrays act as frameworks for effective SERS substrates with a significantly higher Raman signal sensitivity than a planar framework of Au nanoparticles adsorbed two-dimensionally on a flat surface. The SERS signal displays a clear polari...