Surface plasmon resonance of Ag nanoparticles in the vicinity of a high impedance surface

• Surface Plasmon resonance in the vicinity of HIS is studied for the first time.
• Mushroom-like carbon nanostructures were used for fabrication of HIS.
• The plasmon resonance peak shifts to blue by approaching to the HIS.

Surface Plasmon resonance of Ag nanoparticles in the vicinity of a high impedance surface is investigated. Mushroom-like nanostructures were vertically grown on silicon substrate to form a high impedance surface operating in the range of optical frequencies. Formation of Ag nanoparticles on the fabricated high impedance surface was realized using plasma bombardment process. Optical measurements show an enhancement in the surface plasmon resonances of Ag nanoparticles. Also it was shown that the plasmon resonance peak of the Ag nanoparticles shifts to blue when Ag nanoparticles approach to the high impedance surface.