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Single-Photon Counting with Semiconductor Resonant Tunneling Devices.

Andreas Pfenning1,2, Sebastian Krüger2, Fauzia Jabeen2

  • 1Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.

Nanomaterials (Basel, Switzerland)
|July 27, 2022
PubMed
Summary

Resonant tunneling diode single-photon detectors offer deadtime-free photon-number resolution and low dark counts. This review explores their potential and design improvements for next-generation optical quantum technologies.

Keywords:
III–V semiconductor devicesphoton countingresonant tunneling diodesingle-photon detectors

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Area of Science:

  • Quantum information science
  • Optical technologies
  • Photon detection

Background:

  • Advanced optical quantum information science necessitates efficient single-photon detection.
  • Superconducting nanowire single-photon detectors (SNSPDs) and single-photon avalanche diodes (SPADs) are leading technologies.
  • Alternative devices are crucial for advancing single-photon counting capabilities.

Purpose of the Study:

  • To review the state-of-the-art resonant tunneling diode (RTD) single-photon detector.
  • To highlight the advantages of RTD single-photon detectors, including deadtime-free operation and low timing jitter.
  • To discuss limitations and propose design improvements for future RTD-SPD development.

Main Methods:

  • Review of previous studies and current experimental results on RTD single-photon detectors.
  • Analysis of the photodetection mechanism and current-voltage characteristics of RTDs.
  • Exploration of design and parameter variations for enhanced performance.

Main Results:

  • RTD single-photon detectors exhibit a unique photodetection mechanism with negative differential conductance.
  • Theoretical advantages include deadtime-free photon-number resolution at elevated temperatures.
  • Demonstrated low dark counts, low timing jitter, and multiple photon detection modes.
  • Single-photon detection capability of RTDs without quantum dots is confirmed.

Conclusions:

  • RTD single-photon detectors are a promising alternative for single-photon counting in quantum technologies.
  • Further design optimization can enhance their figure of merits.
  • RTDs without quantum dots show viable single-photon detection capabilities.