Results 81 to 90 of about 13,320 (259)
Scientific Reports, 2021 We propose a concept of an electrically controllable plasmonic directional coupler of terahertz signal based on a periodical structure with an active (with inversion of the population of free charge carriers) graphene with a dual grating gate and ...
Mikhail Yu. Morozov +2 more
doaj +1 more source
Waveguide-Integrated, Plasmonic Enhanced Graphene Photodetectors [PDF]
Nano Letters, 2019 We present a micrometer-scale, on-chip integrated, plasmonic enhanced graphene photodetector (GPD) for telecom wavelengths operating at zero dark current. The GPD is designed to directly generate a photovoltage by the photothermoelectric effect. It is made of chemical vapor deposited single layer graphene, and has an external responsivity ∼12.2 V/W ...
Muench, Jakob E +15 more
openaire +6 more sources
Advanced Functional Materials, EarlyView.In this study, we produced HfN‐based nanoparticles via femtosecond laser ablation in acetone. The nanoparticles exhibit a red‐shifted plasmonic resonance in the NIR‐I window, colloidal stability after coating with polyethyleneglycol, and excellent biocompatibility. The photothermal and X‐ray sensitization therapeutic effects were demonstrated for tumor
Julia S. Babkova +15 more
wiley +1 more source
Nonlinear quantum logic with colliding graphene plasmons
Physical Review Research, 2023 Graphene has emerged as a promising platform to bring nonlinear quantum optics to the nanoscale, where a large intrinsic optical nonlinearity enables long-lived and actively tunable plasmon polaritons to strongly interact. Here we theoretically study the
Giuseppe Calajó +5 more
doaj +1 more source
Electrical Detection of Single Graphene Plasmons [PDF]
ACS Nano, 2016 Plasmons --the collective oscillations of electrons in conducting materials-- play a pivotal role in nanophotonics because of their ability to couple electronic and photonic degrees of freedom. In particular, plasmons in graphene --the atomically thin carbon material-- offer strong spatial confinement and long lifetimes, accompanied by extraordinary ...
Yu, Renwen, García de Abajo, F. Javier
openaire +3 more sources
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Broadband Enhancement of Cherenkov Radiation Using Dispersionless Plasmons
Advanced Science, 2022 As one of leading technologies in detecting relativistic particles, Cherenkov radiation plays an essential role in modern high‐energy and particle physics.
Hao Hu +5 more
doaj +1 more source
Energy-Momentum dispersion relation of plasmarons in bilayer graphene
, 2013 The relation between the energy and momentum of plasmarons in bilayer graphene is investigated within the Overhauser approach, where the electron-plasmon interaction is described as a field theoretical problem.
Krstajić, P. M., Peeters, F. M.
core +1 more source
Nonlinear Light Mixing by Graphene Plasmons [PDF]
Nano Letters, 2017 15 pages, 4 ...
Dmytro Kundys +7 more
openaire +4 more sources
Advanced Materials, EarlyView.Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley +1 more source