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Single-Pixel Photon-Counting Imaging Based on Dual-Comb Interferometry.

Huiqin Hu1, Xinyi Ren1, Zhaoyang Wen1

  • 1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.

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Summary
This summary is machine-generated.

We developed a new photon counting imaging technique using dual-comb interferometry. This method achieves high-resolution imaging with extremely low light levels, enabling new possibilities in remote sensing.

Keywords:
Fourier transform spectroscopydual-comb imagingphoton countingsingle-pixelspectrum-encoded

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Area of Science:

  • Optics and Photonics
  • Quantum Imaging
  • Spectroscopy

Background:

  • Dual-comb interferometry is a powerful spectroscopic technique.
  • Traditional imaging methods often require higher illumination power.
  • Photon-counting detectors offer enhanced sensitivity for low-light applications.

Purpose of the Study:

  • To demonstrate single-pixel photon counting imaging using dual-comb interferometry.
  • To achieve imaging at the photon-counting regime with ultra-low illumination.
  • To explore the potential of this technique for remote sensing and imaging applications.

Main Methods:

  • Utilizing dual-comb interferometry at 1550 nm wavelength.
  • Employing single-photon detectors and a time-correlated single-photon counter.
  • Operating at illumination power levels as low as 14 pW (2.2 × 10-3 photons/pulse).

Main Results:

  • Successful demonstration of single-pixel photon counting imaging.
  • Achieved a lateral resolution of approximately 50 μm.
  • Validated imaging capabilities at ultra-low photon flux.

Conclusions:

  • Single-pixel photon counting imaging based on dual-comb interferometry is feasible.
  • The technique enables high-resolution imaging with minimal illumination.
  • This advancement opens doors for dual-comb applications in remote sensing and imaging.