Efficient design, accurate fabrication and effective characterization of plasmonic quasicrystalline arrays of nano-spherical particles

• Published in: Scientific reports Vol. 6; no. 1; p. 22009
• Main Authors: Namin, Farhad A., Yuwen, Yu A., Liu, Liu, Panaretos, Anastasios H., Werner, Douglas H., Mayer, Theresa S.
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 25-02-2016; Nature Publishing Group
• Subjects: 132/122; 142/126; 639/166/987; 639/624/399/1015; Arrays; Boundary conditions; Electrical engineering; Fabrication; Humanities and Social Sciences; multidisciplinary; Nanoparticles; Optical properties; Science; Spheres; Symmetry
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/srep22009

In this paper, the scattering properties of two-dimensional quasicrystalline plasmonic lattices are investigated. We combine a newly developed synthesis technique, which allows for accurate fabrication of spherical nanoparticles, with a recently published variation of generalized multiparticle Mie theory to develop the first quantitative model for plasmonic nano-spherical arrays based on quasicrystalline morphologies. In particular, we study the scattering properties of Penrose and Ammann- Beenker gold spherical nanoparticle array lattices. We demonstrate that by using quasicrystalline lattices, one can obtain multi-band or broadband plasmonic resonances which are not possible in periodic structures. Unlike previously published works, our technique provides quantitative results which show excellent agreement with experimental measurements.