Open AccessPhotoinduced surface plasmon switching at VO2/Au interface
Author(s) -
Nardeep Kumar,
Armando Rúa,
Jennifer Aldama,
Karla Echeverría,
Félix E. Fernández,
Sergiy Lysenko
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.013773
Subject(s) - materials science , ultrashort pulse , plasmon , optics , picosecond , photorefractive effect , surface plasmon resonance , optoelectronics , surface plasmon , surface plasmon polariton , scattering , attenuated total reflection , spectroscopy , reflection (computer programming) , light scattering , polariton , laser , nanotechnology , nanoparticle , infrared , physics , quantum mechanics , computer science , programming language
Angle-resolved reflection, light scattering and ultrafast pump-probe spectroscopy combined with a surface plasmon-polariton (SPP) resonance technique in attenuated total reflection geometry was used to investigate the light-induced plasmonic switching in a photorefractive VO 2 /Au hybrid structure. Measurements of SPP scattering and reflection shows that the optically-induced formation of metallic state in a vanadium dioxide layer deposited on a gold film significantly alters the electromagnetic field enhancement and SPP propagation length at the VO 2 /Au interface. The ultrafast optical manipulation of SPP resonance is shown on a picosecond timescale. Obtained results demonstrate high potential of photorefractive vanadium oxides as efficient plasmonic modulating materials for ultrafast optoelectronic devices.