Results 1 to 10 of about 13,177 (124)

Graphene plasmons-enhanced terahertz response assisted by metallic gratings [PDF]

open access: yesNanophotonics, 2022
Terahertz detectors based on two-dimensional Dirac materials offer a new approach for room-temperature terahertz detection with high response and low noise.
Yu Anqi   +9 more
doaj   +2 more sources

Resonant terahertz detection using graphene plasmons [PDF]

open access: yesNature Communications, 2018
Plasmons confined in field effect transistors were long envisioned for resonant detection of light at THz frequencies, however realization of such photodetectors has proven challenging.
Denis A. Bandurin   +15 more
doaj   +2 more sources

Photonic crystal for graphene plasmons [PDF]

open access: yesNature Communications, 2019
Traditional photonic crystals consist of periodic media with a pre-defined optical response. Here, the authors combine nanostructured back-gate insulators with a continuous layer of graphene to demonstrate an electrically tunable two-dimensional photonic
L. Xiong   +14 more
doaj   +2 more sources

Gas identification with graphene plasmons [PDF]

open access: yesNature Communications, 2019
Identification of gas molecules is crucial in healthcare and security applications. Here the authors achieve label-free identification of SO2, NO2, N2O, and NO gas molecules by detecting their rotational-vibrational modes using graphene nanoribbon ...
Hai Hu   +8 more
doaj   +2 more sources

Transverse‐Electric Cherenkov Radiation for TeV‐Scale Particle Detection [PDF]

open access: yesAdvanced Science
Cherenkov radiation enables high‐energy particle identification through its velocity‐dependent emission angle, yet conventional detectors fail to detect momenta beyond tens of GeV/c owing to the absence of natural materials with near‐unity refractive ...
Zhixiong Xie   +5 more
doaj   +2 more sources

Real-space imaging of acoustic plasmons in large-area graphene grown by chemical vapor deposition

open access: yesNature Communications, 2021
Acoustic graphene plasmons are superior to the graphene surface plasmons in field confinement and normalized propagation length, thus promising for applications.
Sergey G. Menabde   +10 more
doaj   +1 more source

Plasmonic sensors based on graphene and graphene hybrid materials

open access: yesNano Convergence, 2022
The past decade has witnessed a rapid growth of graphene plasmonics and their applications in different fields. Compared with conventional plasmonic materials, graphene enables highly confined plasmons with much longer lifetimes.
Zhichao Zhang   +5 more
doaj   +1 more source

Active control of micrometer plasmon propagation in suspended graphene

open access: yesNature Communications, 2022
Graphene plasmons hold potential for infrared optoelectronic devices, but the interaction with the substrate often degrades their quality. Here, the authors report the characterization of plasmons in suspended graphene with tunable suspension height ...
Hai Hu   +18 more
doaj   +1 more source

Highly Efficient Midinfrared On-Chip Electrical Generation of Graphene Plasmons by Inelastic Electron Tunneling Excitation [PDF]

open access: yes, 2015
Inelastic electron tunneling provides a low-energy pathway for the excitation of surface plasmons and light emission. We theoretically investigate tunnel junctions based on metals and graphene.
Ang, Lay Kee   +4 more
core   +2 more sources

Wideband tunable perfect absorption of graphene plasmons via attenuated total reflection in Otto prism configuration

open access: yesNanophotonics, 2020
A strategy is proposed to achieve wideband tunable perfect plasmonic absorption in graphene nanoribbons by employing attenuated total refraction (ATR) in Otto prism configuration. In this configuration, the Otto prism with a deep-subwavelength dielectric
Nong Jinpeng   +6 more
doaj   +1 more source

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