Title :
Optical properties of quasicrystalline gold nanoparticle arrays in the visible spectrum
Author :
Namin, F. ; Yun, S. ; Wang, X. ; Werner, D.H. ; Mayer, T.S.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Optical properties of aperiodic arrays of gold cylinders in the visible range are studied experimentally and analytically. Aperiodic samples based on Ammann-Beenker and Danzer tilings were fabricated and illuminated with visible light. The arrays are composed of gold cylinders with a diameter of 175 nm and a height of 50 nm in a fused silica medium. The images of the arrays showed multiple colors. The presence of several colors in the colorimetric pattern of the aperiodic arrays can be explained by the presence of multiple photonic resonances in aperiodic structures. Numeric simulations based on Generalized Mie Method were performed on aperiodic nanosphere arrays which also confirmed the presence multiple photonic resonances.
Keywords :
gold; nanofabrication; nanoparticles; numerical analysis; photonic crystals; visible spectra; Ammann-Beenker aperiodic samples; Au; Danzer tilings; aperiodic arrays; aperiodic nanosphere arrays; aperiodic structures; colorimetric pattern; fused silica medium; generalized Mie method; gold cylinders; multiple photonic resonances; numerical simulations; optical properties; quasicrystalline gold nanoparticle arrays; size 175 nm; size 50 nm; visible light illumination; visible spectrum; Geometry; Gold; Image color analysis; Periodic structures; Photonics; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349266
