Tunable DUV Locolized Plasmonic Absorption by Al Metallic Nanoparticles Arrays

Abstract:

We dominated localized surface plasmon resonance (LSPR) of aluminum (Al) by controlling their size and density. We report the implementation of Al nanoparticles (NPs) fabricated on the surface of the Ta₂O₅ layer on glass for localized surface plasmon resonances (LSPRs) coupling. The size, density controllable small Al NPs were fabricated using oblique angle deposition method. The optical properties of the NPs array were studied by UV spectrophotometer and finite-difference time-domain (FDTD) simulations. We found that the LSP resonance wavelength of different sizes of Al NPs array exists a blue shift in the extinction spectrum as the particle size decreases.

• Periodical: Applied Mechanics and Materials (Volume 621)
• Pages: 65-70
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.621.65
• Online since: August 2014
• Authors: Chun Zi Wang*, Kai Huang, Na Gao, Zhi Ming Wu, Jun Yong Kang
• Keywords: Aluminium Nanoparticles, Extinction Spectrum, FDTD Simulation, Localized Surface Plasmon Resonance, Oblique Angle Deposition

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