Recent Progress in Single-Photon Generation and Detection

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 30 June 2025 | Viewed by 839

Special Issue Editor

State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
Interests: single-photon generation; single-photon frequency upconversion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the rapid development of quantum technology, progresses in single-photon sources and single-photon detectors have sprung up. And new applications of single-photon sources and single-photon detectors are not limited in the field of quantum technology but extended to a lot of different field such as metrology, biology, materials science and so forth. Therefore, the Special Issue aims to collect the recent progresses in the single-photon source and detection, including related applications. We welcome papers that highlight the evolving research fields of single-photon generation and detection.

Topics covered include, but not limited to:

  • Single-photon sources and related applications
  • Entangled-photon pair sources
  • Single-photon frequency upconversion/downconversion
  • Metrology with single-photon sources or single-photon detectors
  • Photon-number resolving detection

Dr. E Wu
Guest Editor

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Keywords

  • single-photon source
  • single-photon detector
  • single-photon frequency conversion

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Published Papers (1 paper)

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Research

10 pages, 761 KiB  
Article
Two-Way Single-Photon Laser Time Transfer for High-Speed Moving Platforms
by Xinyi Zhu, Yurong Wang, Zhaohui Li, Xue Li and Guang Wu
Photonics 2024, 11(11), 1028; https://doi.org/10.3390/photonics11111028 - 31 Oct 2024
Viewed by 609
Abstract
The two-way laser time transfer technology, based on single-photon detection, is among the techniques requiring the least weight and power consumption for ultra-long-distance clock synchronization. It holds promise as the most viable technology for high-accuracy inter-satellite clock synchronization, particularly for small satellites that [...] Read more.
The two-way laser time transfer technology, based on single-photon detection, is among the techniques requiring the least weight and power consumption for ultra-long-distance clock synchronization. It holds promise as the most viable technology for high-accuracy inter-satellite clock synchronization, particularly for small satellites that are highly sensitive to weight and power consumption. In this study, we analyze laser time transfer in fast-moving platforms and find that not only does the relative motion speed between platforms significantly impact the clock offset measurement, but also the components of each platform’s relative motion velocity are critical. We introduce a lightweight scenario for laser time transfer, capable of achieving high-precision and high-accuracy interstellar clock offset measurements within a 5000 km range using high repetition rate microchip lasers and single-pixel single-photon detectors. With a speed accuracy of ±0.06 m/s, the precision of clock offset measurement surpasses 3 ps at full width at half maximum (FWHM), making it suitable for high-speed and high-precision clock synchronization between near-Earth satellites. Full article
(This article belongs to the Special Issue Recent Progress in Single-Photon Generation and Detection)
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