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Single-photon generation: materials, techniques, and the Rydberg exciton frontier [Invited]

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1364/OME.549582
AuthorSearch for: ; Search for: ; Search for: 1ORCID identifier: https://orcid.org/0000-0003-3864-1930; Search for: ; Search for: ORCID identifier: https://orcid.org/0000-0003-4549-1870
Affiliation
  1. National Research Council of Canada. Quantum and Nanotechnologies
FunderSearch for: National Science Foundation; Search for: Air Force Office of Scientific Research; Search for: U.S. Department of Energy; Search for: Natural Sciences and Engineering Research Council of Canada
FormatText, Article
Abstract
Due to their quantum nature, single-photon emitters (SPE) generate individual photons in bursts or streams. They are paramount in emerging quantum technologies such as quantum key distribution, quantum repeaters, and measurement-based quantum computing. Many such systems have been reported in the last three decades, from rubidium atoms coupled to cavities to semiconductor quantum dots and color centers implanted in waveguides. This review article highlights different solid-state and atomic systems with on-demand and controlled single-photon generation. We discuss and compare the performance metrics, such as purity and indistinguishability, for these sources and evaluate their potential for different applications. Finally, a new potential single-photon source, based on the Rydberg exciton in solid-state metal oxide thin films, is introduced, where we discuss its promising features and unique advantages in fabricating quantum chips for quantum photonic applications.
Publication date
PublisherOptica Publishing Group
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  • Optical Materials Express 15, no. 4 (10 March 2025): 626–643.
LanguageEnglish
Peer reviewedYes
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Record identifierc7821d69-f316-4171-8c8a-d47626bd775e
Record created2025-07-08
Record modified2025-07-08
Date modified: