Photonics (Feb 2024)

Solid-State Color Centers for Single-Photon Generation

  • Greta Andrini,
  • Francesco Amanti,
  • Fabrizio Armani,
  • Vittorio Bellani,
  • Vincenzo Bonaiuto,
  • Simone Cammarata,
  • Matteo Campostrini,
  • Thu Ha Dao,
  • Fabio De Matteis,
  • Valeria Demontis,
  • Giovanni Di Giuseppe,
  • Sviatoslav Ditalia Tchernij,
  • Simone Donati,
  • Andrea Fontana,
  • Jacopo Forneris,
  • Roberto Francini,
  • Luca Frontini,
  • Roberto Gunnella,
  • Simone Iadanza,
  • Ali Emre Kaplan,
  • Cosimo Lacava,
  • Valentino Liberali,
  • Francesco Marzioni,
  • Elena Nieto Hernández,
  • Elena Pedreschi,
  • Paolo Piergentili,
  • Domenic Prete,
  • Paolo Prosposito,
  • Valentino Rigato,
  • Carlo Roncolato,
  • Francesco Rossella,
  • Andrea Salamon,
  • Matteo Salvato,
  • Fausto Sargeni,
  • Jafar Shojaii,
  • Franco Spinella,
  • Alberto Stabile,
  • Alessandra Toncelli,
  • Gabriella Trucco,
  • Valerio Vitali

DOI
https://doi.org/10.3390/photonics11020188
Journal volume & issue
Vol. 11, no. 2
p. 188

Abstract

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Single-photon sources are important for integrated photonics and quantum technologies, and can be used in quantum key distribution, quantum computing, and sensing. Color centers in the solid state are a promising candidate for the development of the next generation of single-photon sources integrated in quantum photonics devices. They are point defects in a crystal lattice that absorb and emit light at given wavelengths and can emit single photons with high efficiency. The landscape of color centers has changed abruptly in recent years, with the identification of a wider set of color centers and the emergence of new solid-state platforms for room-temperature single-photon generation. This review discusses the emerging material platforms hosting single-photon-emitting color centers, with an emphasis on their potential for the development of integrated optical circuits for quantum photonics.

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