0000000001316477

AUTHOR

Volodymyr Turkowski

showing 3 related works from this author

Plasmon Excitations in Mixed Metallic Nanoarrays

2019

Features of the surface plasmon from macroscopic materials emerge in molecular systems, but differentiating collective excitations from single-particle excitations in molecular systems remains elusive. The rich interactions between single-particle electron-hole and collective electron excitations produce phenomena related to the chemical physics aspects within the atomic array. We study the plasmonic properties of atomic arrays of noble (Au, Ag, and Cu) and transition-metal (Pd, Pt) homonuclear chains using time-dependent density functional theory and their Kohn-Sham transition contributions. The response to the electromagnetic radiation is related to both the geometry-dependent confinement…

Materials scienceGeneral Physics and AstronomyFOS: Physical sciences02 engineering and technologyElectronoptiset ominaisuudet01 natural sciencesMolecular physicsElectromagnetic radiationHomonuclear moleculeplasmonicsnanorakenteet0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)Physics::Atomic and Molecular Clusterstransition contribution mapsGeneral Materials ScienceSurface plasmon resonance010306 general physicsPlasmonCondensed Matter - Materials ScienceCondensed Matter - Mesoscale and Nanoscale Physicsta114Surface plasmontiheysfunktionaaliteoriaGeneral EngineeringMaterials Science (cond-mat.mtrl-sci)molecular plasmonics021001 nanoscience & nanotechnologytime-dependent density-functional theorytime-dependent density functional theorycollective excitationQuasiparticleDensity functional theory0210 nano-technology
researchProduct

Plasmon excitations in chemically heterogeneous nanoarrays

2020

| openaire: EC/H2020/838996/EU//RealNanoPlasmon The capability of collective excitations, such as localized surface plasmon resonances, to produce a versatile spectrum of optical phenomena is governed by the interactions within the collective and single-particle responses in the finite system. In many practical instances, plasmonic metallic nanoparticles and arrays are either topologically or chemically heterogeneous, which affects both the constituent transitions and their interactions. Here, the formation of collective excitations in weakly Cu- and Pd-doped Au nanoarrays is described using time-dependent density functional theory. The additional impurity-induced modes in the optical respo…

PhysicsNanostructureAtom and Molecular Physics and Opticstiheysfunktionaaliteoria02 engineering and technologyCondensed Matter Physics021001 nanoscience & nanotechnology01 natural scienceskvasihiukkasetplasmonitOptical phenomenananorakenteetImpurityChemical physics0103 physical sciencesQuasiparticleDensity functional theorynanohiukkaset010306 general physics0210 nano-technologyQuantumPlasmonLocalized surface plasmon
researchProduct

Data for "Plasmon excitations in chemically heterogeneous nanoarrays"

2020

The data includes atomic structures, photoabsorption spectra, and noninteracting spectra of the systems modeled in the article "Plasmon excitations in chemically heterogeneous nanoarrays" by Kevin Conley et al. See README.md in the archive for a detailed description.

plasmontime-dependent density-functional theory
researchProduct