Open Resonator Electric Spaser

Bobo Liu, Weiren Zhu, Sarath D. Gunapala, Mark I. Stockman, Malin Premaratne

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

The inception of the plasmonic laser or spaser (surface plasmon amplification by stimulated emission of radiation) concept in 2003 provides a solution for overcoming the diffraction limit of electromagnetic waves in miniaturization of traditional lasers into the nanoscale. From then on, many spaser designs have been proposed. However, all existing designs use closed resonators. In this work, we use cavity quantum electrodynamics analysis to theoretically demonstrate that it is possible to design an electric spaser with an open resonator or a closed resonator with much weak feedback in the extreme quantum limit in an all-carbon platform. A carbon nanotube quantum dot plays the role of a gain element, and Coulomb blockade is observed. Graphene nanoribbons are used as the resonator, and surface plasmon polariton field distribution with quantum electrodynamics features can be observed. From an engineering perspective, our work makes preparations for integrating spasers into nanocircuits and/or photodynamic therapy applications.

Original languageEnglish
Pages (from-to)12573-12582
Number of pages10
JournalACS Nano
Volume11
Issue number12
DOIs
Publication statusPublished - 26 Dec 2017

Keywords

  • carbon nanotube
  • Coulomb blockade
  • graphene
  • plasmon
  • spaser

Cite this

Liu, B., Zhu, W., Gunapala, S. D., Stockman, M. I., & Premaratne, M. (2017). Open Resonator Electric Spaser. ACS Nano, 11(12), 12573-12582. https://doi.org/10.1021/acsnano.7b06735
Liu, Bobo ; Zhu, Weiren ; Gunapala, Sarath D. ; Stockman, Mark I. ; Premaratne, Malin. / Open Resonator Electric Spaser. In: ACS Nano. 2017 ; Vol. 11, No. 12. pp. 12573-12582.
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Liu, B, Zhu, W, Gunapala, SD, Stockman, MI & Premaratne, M 2017, 'Open Resonator Electric Spaser', ACS Nano, vol. 11, no. 12, pp. 12573-12582. https://doi.org/10.1021/acsnano.7b06735

Open Resonator Electric Spaser. / Liu, Bobo; Zhu, Weiren; Gunapala, Sarath D.; Stockman, Mark I.; Premaratne, Malin.

In: ACS Nano, Vol. 11, No. 12, 26.12.2017, p. 12573-12582.

Research output: Contribution to journalArticleResearchpeer-review

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Liu B, Zhu W, Gunapala SD, Stockman MI, Premaratne M. Open Resonator Electric Spaser. ACS Nano. 2017 Dec 26;11(12):12573-12582. https://doi.org/10.1021/acsnano.7b06735