Three-dimensional single-photon imaging through obscurants

Rachael Tobin, Abderrahim Halimi, Aongus McCarthy, Martin Laurenzis, Frank Christnacher, Gerald Stuart Buller

Research output: Contribution to journalArticlepeer-review

119 Citations (Scopus)
261 Downloads (Pure)


We investigate the depth imaging of objects through various densities of different obscurants (water fog, glycol-based vapor, and incendiary smoke) using a time-correlated single-photon detection system which had an operating wavelength of 1550 nm and an average optical output power of approximately 1.5 mW. It consisted of a monostatic scanning transceiver unit used in conjunction with a picosecond laser source and an individual Peltier-cooled InGaAs/InP single-photon avalanche diode (SPAD) detector. We acquired depth and intensity data of targets imaged through distances of up to 24 meters for the different obscurants. We compare several statistical algorithms which reconstruct both the depth and intensity images for short data acquisition times, including very low signal returns in the photon-starved regime.
Original languageEnglish
Pages (from-to)4590-4611
Number of pages22
JournalOptics Express
Issue number4
Early online date8 Feb 2019
Publication statusPublished - 18 Feb 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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