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Single-crystal nanoparticles of silicon, several tens of nm in diameter, may be suitable as building blocks for single-nanoparticle electronic devices. Previous studies of nanoparticles produced in low-pressure plasmas have demonstrated the…

We study the dispersion properties of surface plasmon oscillations in a semi-bounded semiconductor plasma with the effects of the Coulomb exchange force associated with the spin polarization of electrons and holes as well as the effects of…

Plasma Physics · Physics 2018-03-02 M. Shamansouri , A. P. Misra

Linear clusters made by tightly connecting two or more metallic nanoparticles have new types of surface plasmon resonances as compared to isolated nanoparticles. These new resonances are related to the size of the junction and to the number…

Mesoscale and Nanoscale Physics · Physics 2011-05-18 Titus Sandu , Daniel Vrinceanu , Eugen Gheorghiu

In order to explore the nature of collective modes in weakly bound nuclei, we have investigated deformation effects and surface flow patterns of isovector dipole modes in a shape-coexisting nucleus $^{40}$Mg. The calculations were done in a…

Nuclear Theory · Physics 2017-09-13 Kai Wang , M. Kortelainen , J. C. Pei

Surface waves on a thin metal filament are described in terms of quantum electrodynamics. The interaction of surface waves with a quantum oscillator is discussed in the dipole approximation. The increase in the spontaneous emission rate of…

Optics · Physics 2010-01-05 V. V. Lidsky

The optical properties of metallic tin nanoparticles embedded in silicon-based host materials were studied. Thin films containing the nanoparticles were produced using RF magnetron sputtering followed by ex situ heat treatment. Transmission…

Mesoscale and Nanoscale Physics · Physics 2010-05-31 Mads Møgelmose Kjeldsen , John Lundsgaard Hansen , Thomas Garm Pedersen , Peter Gaiduk , Arne Nylandsted Larsen

We propose a method that enables strong, coherent coupling between individual optical emitters and electromagnetic excitations in conducting nano-structures. The excitations are optical plasmons that can be localized to sub-wavelength…

Quantum Physics · Physics 2009-11-13 D. E. Chang , A. S. Sorensen , P. R. Hemmer , M. D. Lukin

Surface waves on a metal nanosphere are described in terms of quantum electrodynamics. The interaction of surface waves with a quantum oscillator is discussed in the dipole approximation. The increase in the spontaneous emission rate of the…

Optics · Physics 2013-01-23 A. M. Leontovich , V. V. Lidsky

The dynamical response of metallic clusters up to $10^3$ atoms is investigated using the restricted molecular dynamics simulations scheme. Exemplarily, sodium like material is considered. Correlation functions are evaluated to investigate…

Atomic and Molecular Clusters · Physics 2015-05-28 Thomas Raitza , Heidi Reinholz , Igor Morozov , Gerd Röpke

Particle plasmons in metal nanoparticles have primarily been investigated through the use of local optical response approximations. However, as nanoparticle size approaches the average distance of electrons to the metal surface, mesoscopic…

Optics · Physics 2023-06-28 Weixiang Ye

The possibility of low-energy surface plasmon amplification by optically excited excitons in small-diameter single wall carbon nanotubes is theoretically demonstrated. The nonradiative exciton-plasmon energy transfer causes the buildup of…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 I. V. Bondarev

We present experimental results for water wave turbulence excited by piston-like programmed wavemakers in a water flume with horisontal dimensions 6x12x1.5 meters. Our main finding is that for a wide range of excitation amplitudes the…

Chaotic Dynamics · Physics 2009-11-11 Petr Denissenko , Sergei Lukaschuk , Sergey Nazarenko

Laser and beam driven wakefields promise orders of magnitude increases in electric field gradients for particle accelerators for future applications. Key areas to explore include the emittance properties of the generated beams and…

The plasmon excitations in proposed single- and double-component helical liquid (HL) models are investigated within the random-phase approximation, by calculating the density-density, spin-density and spin-spin waves. The effect due to…

Materials Science · Physics 2015-06-03 O. Roslyak , Godfrey Gumbs , D. H. Huang

We calculate the plasma excitations in a bundle as well as a two-dimensional (2D) periodic array of aligned parallel multishell nanotubes on a substrate. The carbon nanotubes are oriented perpendicular to the substrate. The model we use for…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Tibab McNeish , Godfrey Gumbs , Antonios Balassis

We use molecular dynamics simulations to study a semidilute, unentangled polymer solution containing well dispersed, weakly attractive nanoparticles (NP) of size ($\sigma_N$) smaller than the polymer radius of gyration $R_g$. We find that…

Soft Condensed Matter · Physics 2018-09-18 Valerio Sorichetti , Virginie Hugouvieux , Walter Kob

We present a theoretical and numerical study of resonant surface-plasmon (SP) excitation driven by the beating of two co-propagating laser pulses on a smooth cylindrical plasma-vacuum interface. Analytical expressions for the SP dispersion…

Recent experiments (R. A. Baragiola and C. A. Dukes, Phys. Rev. Lett. {\bf 76}, 2547 (1996)) with slow ions incident at grazing angle on metal surfaces have shown that bulk plasmons are excited under conditions where the ions do not…

Materials Science · Physics 2009-10-31 A. Bergara , J. M. Pitarke , R. H. Ritchie

We develop a theoretical model of the surface plasmon resonance of metallic nanospheres in the size range down to the single nanometer size. Within this model we explicitly show how different microscopic mechanisms, namely quantization due…

Optics · Physics 2013-08-26 R. Carmina Monreal , Tomasz J. Antosiewicz , S. Peter Apell

Versatile quantum modes emerge for plasmon describing the collective oscillations of free electrons in metallic nanoparticles when the particle sizes are greatly reduced. Rather than traditional nanoscale study, the understanding of quantum…