1 research outputs found
Magnetic Control of the Chiroptical Plasmonic Surfaces
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