An Experimental and Theoretical Comparison of Plasmonic Properties of Metallic Nano-Particles Have Different Morphological Properties

In this study, we have grown some plasmonic metal-nanoparticles have different morphological properties on the microscope slide and silicon wafer as substrates depending on an ambient background gas pressure and number of laser pulses by using Pulse Laser Deposition (PLD) technique in connection with a nanosecond Nd:YAG laser system. The morphology of these nanoparticles thin film was investigated by Atomic Force Microscopy. UV-vis spectra have shown that plasmonic metal-nanoparticles present a Localised Surface Plasmon Resonance band in visible and near-infrared (NIR) regions depending on the morphologic structure of the nanoparticles thin film.