Collectively Enhanced Chiral Photon Emission from an Atomic Array near a Nanofiber

Ryan Jones, Giuseppe Buonaiuto, Ben Lang, Igor Lesanovsky, and Beatriz Olmos
Phys. Rev. Lett. 124, 093601 – Published 2 March 2020
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Abstract

Emitter ensembles interact collectively with the radiation field. In the case of a one-dimensional array of atoms near a nanofiber, this collective light-matter interaction does not only lead to an increased photon coupling to the guided modes within the fiber, but also to a drastic enhancement of the chirality in the photon emission. We show that near-perfect chirality can be achieved already for moderately sized ensembles, containing 10 to 15 atoms, by phase matching a superradiant collective guided emission mode via an external laser field. This is of importance for developing an efficient interface between atoms and waveguide structures with unidirectional coupling, with applications in quantum computing and communication such as the development of nonreciprocal photon devices or quantum information transfer channels.

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  • Received 15 October 2019
  • Accepted 21 January 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.093601

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Ryan Jones1, Giuseppe Buonaiuto1,2, Ben Lang1, Igor Lesanovsky1,2, and Beatriz Olmos1,2

  • 1School of Physics and Astronomy and Centre for the Mathematics and Theoretical Physics of Quantum Non-Equilibrium Systems, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
  • 2Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany

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Issue

Vol. 124, Iss. 9 — 6 March 2020

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