Abstract
AbstractWe have developed a novel strategy for elaborating composite plasmonic nanomaterials in a well controlled manner. Combining several techniques commonly used in microelectronic engineering, namely sputtering deposition, thermal oxidation, ultra low energy ion implantation, focused ion beam lithography, thermal or laser annealing, we have obtained 3D patterned optical layers. Their spatial and spectral responses take benefit of optical interference, plasmonic resonance effects and coupling between excitations in both near and far field regime. Moreover these structures show high level of uniformity, reproducibility and stability, and they preserve flat and chemically uniform surfaces.
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