Self-organized ion-beam synthesis of nanowires with broadband plasmonic functionality

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.81.165436· OSTI ID:21366736

Toma, A; Chiappe, D; Boragno, C; Buatier de Mongeot, F ^[1]

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1. Dipartimento di Fisica, Universita degli Studi di Genova, and CNISM, via Dodecaneso 33, 16146 Genova (Italy)

The controlled production of nanostructures endowed with well-selected shapes and reduced dimensionality represents a multidisciplinary key activity in nanotechnology. In particular, a great effort is currently oriented at the development of metal nanoparticle arrays in order to exploit the strong field-enhancement effects associated with the excitation of localized surface plasmon resonances. Here we demonstrate that ion-beam sputtering can be successfully employed to convert a polycrystalline metal film into a disconnected array of nanowires supported on a flat dielectric substrate. The nanowire arrays exhibit spectrally selective dichroic absorption due to the excitation of localized plasmon oscillations. The possibility to tailor the broadband plasmonic response has been demonstrated by finely tuning the morphological parameters of the arrays.

• OSTI ID: 21366736
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 81, Issue 16; Other Information: DOI: 10.1103/PhysRevB.81.165436; (c) 2010 The American Physical Society; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
DIELECTRIC MATERIALS
EXCITATION
FILMS
ION BEAMS
METALS
OSCILLATIONS
PARTICLES
POLYCRYSTALS
QUANTUM WIRES
RESONANCE
SPUTTERING
SUBSTRATES
SURFACES
SYNTHESIS
BEAMS
CRYSTALS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
MATERIALS
NANOSTRUCTURES
SORPTION