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The ultrafast dynamics and conductivity of photoexcited graphene at different Fermi energies
A. Tomadin, S. M. Hornett, H. I. Wang +10
For many of the envisioned optoelectronic applications of graphene it is crucial to understand the sub-picosecond carrier dynamics immediately following photoexcitation, as well as…
Quantum non-local theory of topological Fermi arc plasmons in Weyl semimetals
Gian Marcello Andolina, Francesco M. D. Pellegrino, Frank H. L. Koppens +1
The surface of a Weyl semimetal (WSM) displays Fermi arcs, i.e. disjoint segments of a two-dimensional Fermi contour. We present a quantum-mechanical non-local theory of chiral Fer…
Extraordinary linear dynamic range in laser-defined functionalized graphene photodetectors
Adolfo De Sanctis, Gareth F. Jones, Dominique J. Wehenkel +4
Graphene-based photodetectors have demonstrated mechanical flexibility, large operating bandwidth, and broadband spectral response. However, their linear dynamic range (LDR) is lim…
Electrical detection of hyperbolic phonon-polaritons in heterostructures of graphene and boron nitride
Achim Woessner, Romain Parret, Diana Davydovskaya +11
Light properties in the mid-infrared can be controlled at a deep subwavelength scale using hyperbolic phonons-polaritons (HPPs) of hexagonal boron nitride (h-BN). While propagating…
Electrical 2π phase control of infrared light in a 350nm footprint using graphene plasmons
Achim Woessner, Yuanda Gao, Iacopo Torre +8
Modulating the amplitude and phase of light is at the heart of many applications such as wavefront shaping, transformation optics, phased arrays, modulators and sensors. Performing…
Tuning quantum non-local effects in graphene plasmonics
Mark Lundeberg, Yuanda Gao, Reza Asgari +11
The response of an electron system to electromagnetic fields with sharp spatial variations is strongly dependent on quantum electronic properties, even in ambient conditions, but d…