Figure 3
From: Influence of the layer thickness in plasmonic gold nanoparticles produced by thermal evaporation

(a) Transmittance of a-Si:H films without and with Au-NPs.The different lines represent the TT (red/purple line) and TSp spectra (black/brown line) obtained by illuminating the samples through the glass (full line) or through the film (dot line); top view SEM images of (b) 200 nm a-Si:H film and (c) Au-NPs (5 nm)/a-Si:H layers.