Publication detail

Optical excitation of acoustic surface plasmons in metallic nanoparticles

HRTOŇ, M. POYLI, M. SILKIN, V. AIZPURUA, J.

Original Title

Optical excitation of acoustic surface plasmons in metallic nanoparticles

English Title

Optical excitation of acoustic surface plasmons in metallic nanoparticles

Type

journal article - other

Language

en

Original Abstract

Acoustic surface plasmons are low energy collective excitations occurring at metallic surfaces. These excitations show a linear dispersion which can be described using realistic quantum-mechanical models. The response function of Ag(111) films is calculated and an effective dielectric function of the films is obtained. With use of this dielectric function the scattering of silver nanoparticles in the infrared range is calculated, with focus on the possibility of excitation of localized acoustic surface plasmons. Our calculations show that it is possible to excite optically localized acoustic surface plasmons in silver spheres, although the efficiency is very low.

English abstract

Acoustic surface plasmons are low energy collective excitations occurring at metallic surfaces. These excitations show a linear dispersion which can be described using realistic quantum-mechanical models. The response function of Ag(111) films is calculated and an effective dielectric function of the films is obtained. With use of this dielectric function the scattering of silver nanoparticles in the infrared range is calculated, with focus on the possibility of excitation of localized acoustic surface plasmons. Our calculations show that it is possible to excite optically localized acoustic surface plasmons in silver spheres, although the efficiency is very low.

Keywords

Surface Plasmons; Nanoparticles; Calculations

RIV year

2012

Released

19.10.2012

Pages from

751

Pages to

756

Pages count

6

BibTex


@article{BUT102070,
  author="Martin {Hrtoň} and M. Ameen {Poyli} and Vyacheslav M. {Silkin} and Javier {Aizpurua}",
  title="Optical excitation of acoustic surface plasmons in metallic nanoparticles",
  annote="Acoustic surface plasmons are low energy collective excitations occurring at metallic surfaces. These excitations show a linear dispersion which can be described using realistic quantum-mechanical models. The response function of Ag(111) films is calculated and an effective dielectric function of the films is obtained. With use of this dielectric function the scattering of silver nanoparticles in the infrared range is calculated, with focus on the possibility of excitation of localized acoustic surface plasmons. Our calculations show that it is possible to excite optically localized
acoustic surface plasmons in silver spheres, although the efficiency is very low.",
  chapter="102070",
  doi="10.1002/andp.201200141",
  number="11",
  volume="524",
  year="2012",
  month="october",
  pages="751--756",
  type="journal article - other"
}