Excitation of quantum dot by femtosecond plasmon-polariton pulse focused by conducting cone

Pavel A. Golovinski, Valeri A. Astapenko, Egor S. Manuylovich*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A surface plasmon polariton is an electromagnetic wave that propagates along an interface between two materials with dielectric permittivity of opposite signs. Such waves can be focused by metal waveguides of special geometry. The spatial distribution for a near-field strongly depends on a linear chirp of the laser pulse, which can partially compensate the wave dispersion. Field distribution is calculated for different chirp values, opening angles, and distances. The spatial selectivity of excitation of quantum dots using focused fields is shown using Bloch equations.

Original languageEnglish
Article number033511
JournalJournal of Nanophotonics
Volume10
Issue number3
Early online date18 Apr 2016
DOIs
Publication statusPublished - 1 Jul 2016

Bibliographical note

Copyright 2016 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • excitation
  • femtosecond pulse
  • plasmon polariton
  • quantum dot
  • superfocusing

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