Photonics (Dec 2024)

Single-Photon Detectors for Quantum Integrated Photonics

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

DOI
https://doi.org/10.3390/photonics12010008
Journal volume & issue
Vol. 12, no. 1
p. 8

Abstract

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Single-photon detectors have gained significant attention recently, driven by advancements in quantum information technology. Applications such as quantum key distribution, quantum cryptography, and quantum computation demand the ability to detect individual quanta of light and distinguish between single-photon states and multi-photon states, particularly when operating within waveguide systems. Although single-photon detector fabrication has been established for some time, integrating detectors with waveguides using new materials with suitable structural and electronic properties, especially at telecommunication wavelengths, creates more compact source-line-detector systems. This review explores the state of the art of single-photon detector research and examines the potential breakthroughs offered by novel low-dimensional materials in this field.

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