Results 31 to 40 of about 13,320 (259)
Emergent scale invariance of non-classical plasmons in graphene nanoribbons [PDF]
, 2018 Using a nearest-neighbor tight-binding model we investigate quantum effects of plasmons on few-nanometer wide graphene nanoribbons, both for zigzag and armchair edge terminations.
Mortensen, N. Asger +3 more
core +3 more sources
Plasmons in graphene moiré superlattices [PDF]
Nature Materials, 2015 Moiré patterns are periodic superlattice structures that appear when two crystals with a minor lattice mismatch are superimposed. A prominent recent example is that of monolayer graphene placed on a crystal of hexagonal boron nitride. As a result of the moiré pattern superlattice created by this stacking, the electronic band structure of graphene is ...
Ni, GX +10 more
openaire +4 more sources
Plasmon Blockade in Nanostructured Graphene
ACS Nano, 2012 Among the many extraordinary properties of graphene, its optical response allows one to easily tune its interaction with nearby molecules via electrostatic doping. The large confinement displayed by plasmons in graphene nanodisks makes it possible to reach the strong-coupling regime with a nearby quantum emitter, such as a quantum dot or a molecule. In
Manjavacas, Alejandro +2 more
openaire +4 more sources
Quantum Effects in the Acoustic Plasmons of Atomically-Thin Heterostructures [PDF]
, 2019 Recent advances in nanofabrication technology now enable unprecedented control over 2D heterostructures, in which single- or few-atom thick materials with synergetic opto-electronic properties can be combined to develop next-generation nanophotonic ...
Cox, Joel D. +2 more
core +2 more sources
Graphene-controlled Terahertz Plasmonic Laser [PDF]
CLEO: 2013 Postdeadline, 2013 For the first time, we demonstrate that monolayer graphene can control surface-plasmon modes in terahertz lasers. Integrating a graphene-coated, multi-band filter, varied in situ by electrochemical gating, individual modes can be switched on and off. © 2013 OSA.
Chakraborty, S. +5 more
openaire +2 more sources
Highly confined low-loss plasmons in graphene-boron nitride heterostructures [PDF]
, 2014 Graphene plasmons were predicted to possess ultra-strong field confinement and very low damping at the same time, enabling new classes of devices for deep subwavelength metamaterials, single-photon nonlinearities, extraordinarily strong light-matter ...
Alonso-González, Pablo +12 more
core +2 more sources
Fundamental limits to graphene plasmonics [PDF]
Nature, 2018 Plasmon polaritons are hybrid excitations of light and mobile electrons that can confine the energy of long-wavelength radiation at the nanoscale. Plasmon polaritons may enable many enigmatic quantum effects, including lasing 1 , topological protection2,3 and dipole-forbidden absorption 4 .
Ni, GX +11 more
openaire +4 more sources
High Sensitivity Optical Sensor Based on Surface Plasmon Effect on Graphene for Detection of DMSO Concentrations [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsIn this study, a rib waveguide is used in the design of a plasmonic sensor. The structure consists of a dielectric substrate constituted of tantalum pentoxide (Ta2O5).
Gabriel A. Souto +2 more
doaj +1 more source
Efficient plasmonic emission by the quantum Čerenkov effect from hot carriers in graphene
Nature Communications, 2016 Graphene plasmons have gained significant interest thanks to their high field confinement and low phase velocity. Here the authors show theoretically that charge carriers propagating in graphene can excite plasmons through a quantum Čerenkov emission ...
Ido Kaminer +8 more
doaj +1 more source
Applied Sciences, 2014 The terahertz plasmon dispersion of a multilayer system consisting of graphene on dielectric and/or plasma thin layers is systematically investigated. We show that graphene plasmons can couple with other quasiparticles such as phonons and plasmons of the
I-Tan Lin +3 more
doaj +1 more source