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Magnetic Control of the Chiroptical Plasmonic Surfaces
Zubritskaya, Irina; Maccaferri, Nicolò; Inchausti Ezeiza, Xabier et al.
2018In Nano Letters, 18 (1), p. 302-307
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Keywords :
2D nanoantennas; chiroptics; active tuning; magnetoplasmonics; plasmonics
Abstract :
[en] A major challenge facing plasmon nanophotonics is the poor dynamic tunability. A functional nanophotonic element would feature the real-time sizable tunability of transmission, reflection of light's intensity or polarization over a broad range of wavelengths, and would be robust and easy to integrate. Several approaches have been explored so far including mechanical deformation, thermal, or refractive index effects, and all-optical switching. Here we devise an ultrathin chiroptical surface, built on two-dimensional nanoantennas, where the chiral light transmission is controlled by the externally applied magnetic field. The magnetic field-induced modulation of the far-field chiroptical response with this surface exceeds 100% in the visible and near-infrared spectral ranges, opening the route for nanometer-thin magnetoplasmonic light-modulating surfaces tuned in real time and featuring a broad spectral response.
Disciplines :
Physics
Author, co-author :
Zubritskaya, Irina 
Maccaferri, Nicolò  ;  Istituto Italiano di Tecnologia ; CIC nanoGUNE
Inchausti Ezeiza, Xabier
Vavassori, Paolo
Dmitriev, Alexandre
 These authors have contributed equally to this work.
External co-authors :
yes
Language :
English
Title :
Magnetic Control of the Chiroptical Plasmonic Surfaces
Publication date :
2018
Journal title :
Nano Letters
ISSN :
1530-6992
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
18
Issue :
1
Pages :
302-307
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 22 February 2019

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