Photon Statistics of Filtered Resonance Fluorescence

Catherine L. Phillips, Alistair J. Brash, Dara P. S. McCutcheon, Jake Iles-Smith, Edmund Clarke, Benjamin Royall, Maurice S. Skolnick, A. Mark Fox, and Ahsan Nazir
Phys. Rev. Lett. 125, 043603 – Published 23 July 2020
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Abstract

Spectral filtering of resonance fluorescence is widely employed to improve single photon purity and indistinguishability by removing unwanted backgrounds. For filter bandwidths approaching the emitter linewidth, complex behavior is predicted due to preferential transmission of components with differing photon statistics. We probe this regime using a Purcell-enhanced quantum dot in both weak and strong excitation limits, finding excellent agreement with an extended sensor theory model. By changing only the filter width, the photon statistics can be transformed between antibunched, bunched, or Poissonian. Our results verify that strong antibunching and a subnatural linewidth cannot simultaneously be observed, providing new insight into the nature of coherent scattering.

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  • Received 19 February 2020
  • Accepted 8 June 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.043603

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyCondensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

Catherine L. Phillips1, Alistair J. Brash1,*, Dara P. S. McCutcheon2, Jake Iles-Smith1,3,4, Edmund Clarke5, Benjamin Royall1, Maurice S. Skolnick1, A. Mark Fox1, and Ahsan Nazir3,†

  • 1Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
  • 2Quantum Engineering Technology Labs, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, University of Bristol, Bristol BS8 1FD, United Kingdom
  • 3Department of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
  • 4Department of Electrical and Electronic Engineering, The University of Manchester, Sackville Street Building, Manchester M1 3BB, United Kingdom
  • 5EPSRC National Epitaxy Facility, Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom

  • *a.brash@sheffield.ac.uk
  • ahsan.nazir@manchester.ac.uk

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Issue

Vol. 125, Iss. 4 — 24 July 2020

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