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2014 | 3 | 1 |
Tytuł artykułu

Analyzing nonlocal effects in the plasmon spectra of a metal slab by the Green’s function technique for hydrodynamic model

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
We study the dynamic response of a metal slab containing electron gas described by the hydrodynamic model with dispersion. The resulting wave equation for the perturbed electron density is solved by means of the Green’s function that satisfies Neumann boundary conditions at the endpoints of the slab. This solution is coupled with the electrostatic potential, which is expressed in terms of the Green’s function for the Poisson equation for a layered structure consisting of three dielectric regions. As an illustration, a set of dispersion relations for eigenfrequencies is deduced for the plasma oscillations in the electron gas, corresponding to both the surface and the bulk modes of even and odd symmetry with respect to the center of the metal slab.
Twórcy
autor
  • Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario,
    Canada N2L 3G1
  • Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario,
    Canada N2L 3G1, zmiskovi@uwaterloo.ca
  • Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
  • School of Physics and Optoelectronic Technology, Dalian University of
    Technology, Dalian, China 116024
  • School of Physics and Optoelectronic Technology, Dalian University of
    Technology, Dalian, China 116024
  • School of Physics and Optoelectronic Technology, Dalian University of
    Technology, Dalian, China 116024
Bibliografia
  • ---
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  • [2] M. I. Stockman, Nanoplasmonics: The physics behind the applications, Phys. Today 64(2), 39 (2011).[WoS]
  • [3] J. L. West and N. J. Halas, Annu. Rev. Biomed. Eng. 5, 285 (2003).[Crossref]
  • [4] A. Moreau, C. Ciracì, and D. R. Smith, Phys. Rev. B 87, 045401 (2013).
  • [5] C. Ciracì, J. B. Pendry, and D. R. Smith, Hydrodynamic Model for Plasmonics: A Macroscopic Approach to a MicroscopicProblem, Chem. Phys. Chem. 14, 1109 (2013).
  • [6] C. Ciracì, R. T. Hill, J. J. Mock, Y. Urzhumov, A. I. Fernández-Domínguez, S. A. Maier, J. B. Pendry, A. Chilkoti, and D. R. Smith,Probing the Ultimate Limits of Plasmonic Enhancement, Sceince 337, 1072 (2012).
  • [7] C. David and F. J. G. de Abajo, Spatial Nonlocality in the Optical Response of Metal Nanoparticles, J. Phys. Chem. C 115, 19470(2011).[WoS]
  • [8] A. Wiener, A. I. Fernández-Domínguez, A. P. Horsfield, J. B. Pendry, and S. A. Maier, Nonlocal Effects in the NanofocusingPerformance of Plasmonic Tips, Nano Lett. 12, 3308 (2012).[WoS][Crossref][PubMed]
  • [9] F. Bloch, Bremsvermögen von Atomen mit mehreren Elektronen. Z. Phys. A 81, 363 (1933).
  • [10] R.H. Ritchie, Plasma losses by fast electrons in thin films. Phys. Rev. 106, 874 (1957).[Crossref]
  • [11] A. Eguiluz, Density response function and the dynamic structure factor of thin metal films: Nonlocal effects, Phys. Rev. B 19,1689 (1979).
  • [12] R. H. Ritchie and A. L. Marusak, The surface plasmon dispersion relation for an electron gas, Surf. Sci. 4, 234 (1966).[Crossref]
  • [13] G. Barton, Some surface effects in the hydrodynamic model of metals, Rep. Prog. Phys. 42, 65 (1979).
  • [14] I. Villo-Perez, Z. L. Miškovic, and N. R. Arista, Plasmon Spectra of Nano-Structures: A Hydrodynamic Model in Trends inNanophysics, edited by A. Aldea and V. Bârsan (Springer, Berlin, 2010), p. 217.
  • [15] Y.-Y. Zhang, S.-B. An, Y.-H. Song, N. Kang, Z. L. Miškovic, and Y.-N. Wang, Plasmon excitation in metal slab by fast pointcharge: The role of additional boundary conditions in quantum hydrodynamic model, Phys. Plasmas. 21, 102114 (2014).[Crossref][WoS]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.doi-10_2478_nsmmt-2014-0005
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