Results 41 to 50 of about 76,589 (319)

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk   +5 more
wiley   +1 more source

Microscopic analysis of gain spectrum of surface plasmons in graphene

open access: yesResults in Physics, 2016
In this paper, microscopic interactions of surface plasmons and carriers in the graphene layer are investigated and based on the second quantization formalism, rate equations of surface plasmons are presented. Plasmonic matrix element for surface plasmon-
Mohammad Karimi, Vahid Ahmadi
doaj   +1 more source

Surface plasmon-assisted microscope [PDF]

open access: yesJournal of Biomedical Optics, 2018
Total internal reflection microscopy (TIRF) has been a powerful tool in biological research. The most valuable feature of the method has been the ability to image 100- to 200-nm-thick layer of cell features adjacent to a coverslip, such as membrane lipids, membrane receptors, and structures proximal-to-basal membranes.
Borejdo, Julian   +6 more
openaire   +2 more sources

Efficient nonlinear generation of THz plasmons in graphene and topological insulators [PDF]

open access: yes, 2013
Surface plasmons in graphene may provide an attractive alternative to noble-metal plasmons due to their tighter confinement, peculiar dispersion, and longer propagation distance.
Belyanin, Alexey   +2 more
core   +3 more sources

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced 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

Graphene plasmons in the presence of adatoms

open access: yesNew Journal of Physics, 2017
We theoretically investigate graphene plasmons in the presence of a low density of adatoms on the graphene surface. The adatoms can significantly modify the conductivity and plasmonic properties of graphene and may produce a level splitting with the ...
Giovanni Viola   +3 more
doaj   +1 more source

Influence of Nanovoids Depth on the Surface Magneto-Optical Kerr Effect Modulations in Magnetic Photonic Crystal Slab

open access: yesIEEE Photonics Journal, 2017
Magnetic photonic crystal slab with nanovoids buried in Ni films were fabricated using nanosphere lithography combined with electrochemical deposition.
Xia Zhang   +6 more
doaj   +1 more source

Intensity dependences of the nonlinear optical excitation of plasmons in graphene [PDF]

open access: yes, 2017
Recently, we demonstrated an all-optical coupling scheme for plasmons, which takes advantage of the intrinsic nonlinear optical response of graphene.
Chang, D. E.   +3 more
core   +2 more sources

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

open access: yesAdvanced 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

Collective excitations on a surface of topological insulator [PDF]

open access: yes, 2011
We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly determined by its ...
Efimkin, D. K.   +2 more
core   +3 more sources

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