Understanding Bowtie nanoantennas excited by a localized emitter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

  • Victor Pacheco-Peña
  • Miguel Beruete
  • Antonio I. Fernández-Domínguez
  • Yu Luo
  • Miguel Navarro-Cia

Colleges, School and Institutes

External organisations

  • Universidad Pública de Navarra
  • Universidad Autónoma de Madrid
  • Nanyang Technological University

Abstract

A full analytical description of a bowtie nanoantenna excited by a localized emitter is presented using the transformation electromagnetic technique. By applying the conformal mapping, the bowtie nanoantenna is transformed into a periodic multi-parallel plate transmission line problem which can be easily evaluated analytically providing physical insight of the coupling between the dipole nanoemitter and the bowtie nanoantenna. The non-radiative Purcell enhancement spectrum is evaluated both analytically and numerically for different lengths, arm angles and metals, demonstrating a good agreement between both approaches. The method here presented fills the gap of the design techniques for optical nanoantennas.

Details

Original languageEnglish
Title of host publication2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
Publication statusPublished - 18 Oct 2017
Event2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017 - San Diego, United States
Duration: 9 Jul 201714 Jul 2017

Conference

Conference2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017
CountryUnited States
CitySan Diego
Period9/07/1714/07/17

Keywords

  • Bowtie nanoantenna, Conformal transformation, Nanoantenna, Purcell enhancement.