Analysis of the use of the LCR circuit model for evaluating the resonant response of thin rectangular nanoantennas

V.Yu. Venediktov, E.A. Efremova, I.R. Krylov, U.V. Prokhorova

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate the possibility of estimating in a simple way the expected frequency of the resonant response to an external electromagnetic field in a thin golden nanoantenna having a rectangular cross section. The paper considers nanoantennas with a thickness smaller than the thickness of the skin layer or comparable with it. Analytical expressions for estimating the resonance response are presented, and full-wave simulation is performed. The algorithm for obtaining such estimates is important, in particular, for planning experiments without using full-wave simulation, which is often rather resource consuming. To obtain analytical expressions, a refined LCR circuit model is used. The analytical estimates obtained for the characteristics of the resonant response are in good agreement with the results of the full-wave simulation.
Original languageEnglish
Pages (from-to)676-682
JournalQuantum Electronics
Volume49
Issue number7
DOIs
StatePublished - 2019

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Keywords

  • Broadband resonance
  • LCR circuit model
  • Nanoantennas
  • Nanobar
  • Resonant response

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