Results 51 to 60 of about 50,973 (273)
Neutral Magic‐Angle Bilayer Graphene: Condon Instability and Chiral Resonances
Small Science, 2023 The full optical response of twisted bilayer graphene at the neutrality point close to the magic angle within the continuum model (CM) is discussed. First, three different channels consistent with the underlying D 3 symmetry are identified, yielding the ...
Tobias Stauber +6 more
doaj +1 more source
“Deterministic” Quantum Plasmonics [PDF]
Nano Letters, 2010 We demonstrate “deterministic” launching of propagative quantum surface-plasmon polaritons at freely chosen positions on gold plasmonic receptacles. This is achieved by using as a plasmon launcher a near-field scanning optical source made of a diamond nanocrystal with two nitrogen-vacancy color-center occupancy.
Cuche, Aurelien +3 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth +8 more
wiley +1 more source
Excitation of wakefields in carbon nanotubes: a hydrodynamic model approach
New Journal of Physics, 2023 The interactions of charged particles with carbon nanotubes (CNTs) may excite electromagnetic modes in the electron gas produced in the cylindrical graphene shell constituting the nanotube wall.
P Martín-Luna +4 more
doaj +1 more source
, 2018 We demonstrate importance of molecular multiple excitons and higher-order plasmons for both enhancement and quenching of resonance Raman and fluorescence of single dye molecule located at plasmonic hotspot under strong coupling regime.
Itoh, Tamitake, Yamamoto, Yuko S.
core +1 more source
Physical Review B, 2019 Plasmonic nanoparticles resonantly couple to and confine light below the diffraction limit. This mechanism has enabled a modern renaissance in optical materials, with potential applications ranging from sensing and circuitry to renewable energies and medicines.
Geldmeier, Jeffrey +4 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui +17 more
wiley +1 more source
Selective excitation of plasmons superlocalized at sharp perturbations of metal nanoparticles
, 2015 Sharp metal corners and tips support plasmons localized on the scale of the curvature radius -- superlocalized plasmons. We analyze plasmonic properties of nanoparticles with small and sharp corner- and tip-shaped surface perturbations in terms of ...
Gorkunov, M. V. +2 more
core +1 more source
Phononless thermally activated transport through a disordered array of quantum wires [PDF]
, 2001 Phononless plasmon assisted transport through a long disordered array of finite length quantum wires is investigated analytically. Two temperature regimes, the low- and the high-temperature ones, with qualitatively different temperature dependencies of ...
de Araújo Andréa, Giugliano Loreny
core +5 more sources
Plasmonic devices – tiny plasmonic hybrid receivers
Optics ExpressPlasmonic hybrids are introduced to replace photonic optical hybrids for coherent reception. These plasmonic circuits offer a compact footprint and a fabrication compatible with many electronic platforms as one only relies on metallic layer stacks. To mitigate the plasmonic losses, we propose new designs with shortest propagation paths.
Michael Baumann +4 more
openaire +2 more sources