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Photochromic Switching of Fano Resonances in Metallic Photonic Crystal Slabs
Author(s) -
Bleckmann Felix,
Maibach Eduard,
Cordes Sandra,
Umbach Thorsten E.,
Meerholz Klaus,
Linden Stefan
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201400187
Subject(s) - materials science , fano resonance , delocalized electron , photochromism , transmittance , photonic crystal , plasmon , waveguide , optoelectronics , nanowire , photonics , metal , spectroscopy , optics , nanotechnology , physics , metallurgy , quantum mechanics
Metallic photonic crystal slabs composed of periodic gold nanowire arrays embedded in a photochromic waveguide are studied by optical transmittance spectroscopy. The interaction of the localized plasmon mode of the nanowires and the delocalized waveguide mode gives rise to pronounced Fano resonances. By switching the photochromic waveguide from the transparent to the absorbing state, the Fano dip is strongly suppressed.