Details

Autor(en) / Beteiligte

• Leite, I. T.
• Hierro-Rodríguez, A.
• Silva, A. O.
• Teixeira, J. M.
• Sousa, C. T.
• Fernández-García, M. P.
• Araújo, J. P.
• Jorge, P. A. S.
• Guerreiro, A.

Titel

Exciting the optical response of nanowire metamaterial films on the tip of optical fibres

Ist Teil von

• Physica status solidi. PSS-RRL. Rapid research letters, 2013-09, Vol.7 (9), p.664-667

Ort / Verlag

Berlin: WILEY-VCH Verlag

Erscheinungsjahr

2013

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• This Letter reports on the assembly on the tip of an optical fibre of a metamaterial film fabricated by a self‐assembly bottom‐up method, composed of silver nanowires embedded in an alumina matrix. By illuminating the film through the fibre in a reflection configuration, we observe experimentally the optical response of the metamaterial in agreement with theoretical predictions and interpreted as the excitation of surface plasmon‐polaritons in the cylindrical surface of the nanowires. These results pave the way for low‐cost optical fibre devices that incorporate metamaterial films. Micrographs of a nanowire metamaterial film mounted on the tip of an optical fibre (left) and top‐view of the sample in a transmission configuration (right). The red colour results from the absorption of the other optical wavelengths by the plasmon modes in the metamaterial. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) In this work, an Ag‐nanowire metamaterial film was produced by a bottom‐up fabrication process and assembled on the tip of an optical fibre, without any modification of its optical properties. The experimental observations are in agreement with the excitation of surface plasmon‐polaritons along the metallic nanowires. These results pave the way for low‐cost optical fibre devices that incorporate metamaterial films.