Resonance fluorescence and phase-dependent spectra of a singly charged n-doped quantum dot in the Voigt geometry

F. Carreño, S. Maede-Razavi, and M. A. Antón
Phys. Rev. B 95, 195310 – Published 19 May 2017

Abstract

We report on the resonance fluorescence and phase-dependent spectra in singly charged n-doped quantum dots in the presence of a strong external magnetic field in the Voigt geometry. The use of a nonresonant laser field driving two of the four active transitions results in the obtention of fluorescent photons along the four channels. The fluorescent photons coming from the two undriven transitions exhibit sidebands whose spectral location can be tuned through the Rabi frequency of the driving field and, most interestingly, their linewidths remain subnatural even for large values of the Rabi frequency of the laser field. It is shown that those sidebands present quantum fluctuations below the fundamental limit set by vacuum fluctuations. The numerical findings are fully explained by considering how the dressed states evolve in terms of the external physical magnitudes: the detuning, the Rabi frequency, and the dephasing rates.

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  • Received 3 October 2016
  • Revised 29 March 2017

DOI:https://doi.org/10.1103/PhysRevB.95.195310

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

F. Carreño1, S. Maede-Razavi2, and M. A. Antón1

  • 1Facultad de Óptica y Optometría, Universidad Complutense de Madrid, Calle Arcos de Jalón 118, 28037 Madrid, Spain
  • 2Department of Physics, College of Science, University of Yasouj, Yasouj, Iran

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Issue

Vol. 95, Iss. 19 — 15 May 2017

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