Theory of Light Emission from Quantum Noise in Plasmonic Contacts: Above-Threshold Emission from Higher-Order Electron-Plasmon Scattering

Kristen Kaasbjerg and Abraham Nitzan
Phys. Rev. Lett. 114, 126803 – Published 26 March 2015; Erratum Phys. Rev. Lett. 120, 169902 (2018)
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Abstract

We develop a theoretical framework for the description of light emission from plasmonic contacts based on the nonequilibrium Green function formalism. Our theory establishes a fundamental link between the finite-frequency quantum noise and ac conductance of the contact and the light emission. Calculating the quantum noise to higher orders in the electron-plasmon interaction, we identify a plasmon-induced electron-electron interaction as the source of experimentally observed above-threshold light emission from biased STM contacts. Our findings provide important insight into the effect of interactions on the light emission from atomic-scale contacts.

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  • Received 8 December 2014
  • Corrected 11 April 2018

DOI:https://doi.org/10.1103/PhysRevLett.114.126803

© 2015 American Physical Society

Corrections

11 April 2018

Erratum

Authors & Affiliations

Kristen Kaasbjerg1,2,* and Abraham Nitzan2

  • 1Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel
  • 2School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel

  • *cosby@fys.ku.dk

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Issue

Vol. 114, Iss. 12 — 27 March 2015

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