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Exciting the optical response of nanowire metamaterial films on the tip of optical fibres
Author(s) -
Leite I. T.,
HierroRodríguez A.,
Silva A. O.,
Teixeira J. M.,
Sousa C. T.,
FernándezGarcía M. P.,
Araújo J. P.,
Jorge P. A. S.,
Guerreiro A.
Publication year - 2013
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201308033
Subject(s) - metamaterial , materials science , nanowire , optoelectronics , optics , surface plasmon polariton , surface plasmon , wavelength , plasmon , physics
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)