Results 61 to 70 of about 13,320 (259)
Spectrally and Spatially Tunable Terahertz Metasurface Lens Based on Graphene Surface Plasmons
IEEE Photonics Journal, 2018 In this paper, we propose a spectrally and spatially tunable terahertz metasurface lens based on the surface plasmons of graphene ribbons. By tuning the graphene Fermi energy, the optical property of graphene surface plasmons can be dynamically modulated,
Wei Yao +5 more
doaj +1 more source
Active spatial control of terahertz plasmons in graphene
Communications Materials, 2020 Controlling spatial conductivity in graphene is important for plasmonic devices, yet conductivity patterning typically changes the electromagnetic environment.
Ngoc Han Tu +5 more
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Advanced Functional Materials, EarlyView.This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti +3 more
wiley +1 more source
Directional dependence of the plasmonic gain and nonreciprocity in drift-current biased graphene
Nanophotonics, 2022 Here, we investigate the nonreciprocal propagation and amplification of surface plasmons in drift-current biased graphene, using both Galilean and relativistic-type Doppler shift transformations of the graphene’s conductivity.
Morgado Tiago A., Silveirinha Mário G.
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Caustic graphene plasmons with Kelvin angle
, 2015 A century-long argument made by Lord Kelvin that all swimming objects have an effective Mach number of 3, corresponding to the Kelvin angle of 19.5 degree for ship waves, has been recently challenged with the conclusion that the Kelvin angle should ...
Gao, Fei +5 more
core +1 more source
Plasmon transport in graphene investigated by time-resolved measurement [PDF]
, 2012 Plasmons, which are collective charge oscillations, offer the potential to use optical signals in nano-scale electric circuits. Recently, plasmonics using graphene have attracted interest, particularly because of the tunable plasmon frequency through the
Fujisawa, T. +6 more
core +2 more sources
Tunneling Plasmonics in Bilayer Graphene [PDF]
Nano Letters, 2015 27 pages, 11 ...
Fei, Z +16 more
openaire +5 more sources
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source
Hybridization of graphene-gold plasmons for active control of mid-infrared radiation
Scientific ReportsMany applications in environmental and biological sensing, standoff detection, and astronomy rely on devices that operate in the mid-infrared range, where active devices can play a critical role in advancing discovery and innovation.
Matthew D. Feinstein, Euclides Almeida
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Invited - Nonlinear plasmonics in 2D nanoribbons and heterostructures [PDF]
EPJ Web of ConferencesWe explore the nonlinear optical properties of graphene and phosphorene nanoribbons using ab initio modeling and self-consistent perturbation theory.
Jelver Line, Cox Joel D.
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