Cumulative data acquisition in comparative photon-counting three-dimensional imaging

Nils J. Krichel, Aongus McCarthy, Ivan Rech, Massimo Ghioni, Angelo Gulinatti, Gerald S. Buller

Research output: Contribution to journalArticle

Abstract

In recent years, time-correlated single-photon counting techniques have been applied to time-of-flight measurements for long-distance range-finding and depth imaging. Depth imaging has been performed by obtaining timing information from an individual single-photon detector and scanning the optical field to obtain a full depth image. Typically, the measurement is made by dwelling on each individual depth pixel for a pre-defined integration time and completing the data acquisition for that pixel before steering the beam to the adjacent spatial position. We present a novel photon-counting data acquisition mode where the time-of-flight histograms for each depth pixel are gradually populated. The system repeatedly scans the same spatial frame with short per-pixel dwell times, and sufficient photon statistics are built up over many frames by cumulating photon events from all acquired frames. The technique is used to compare the depth imaging performance of two single-photon avalanche diode detectors: a novel, resonant-cavity enhanced shallow-junction device; and a commercially available thick-junction device. © 2011 Taylor & Francis.

Original languageEnglish
Pages (from-to)244-256
Number of pages13
JournalJournal of Modern Optics
Volume58
Issue number3-4
DOIs
Publication statusPublished - 10 Jan 2011

Fingerprint

data acquisition
counting
photons
pixels
avalanche diodes
dwell
detectors
cavity resonators
histograms
time measurement
statistics
scanning

Keywords

  • depth profiling
  • photon statistics
  • three-dimensional imaging
  • time-correlated single-photon counting

Cite this

Krichel, Nils J. ; McCarthy, Aongus ; Rech, Ivan ; Ghioni, Massimo ; Gulinatti, Angelo ; Buller, Gerald S. / Cumulative data acquisition in comparative photon-counting three-dimensional imaging. In: Journal of Modern Optics. 2011 ; Vol. 58, No. 3-4. pp. 244-256.
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Cumulative data acquisition in comparative photon-counting three-dimensional imaging. / Krichel, Nils J.; McCarthy, Aongus; Rech, Ivan; Ghioni, Massimo; Gulinatti, Angelo; Buller, Gerald S.

In: Journal of Modern Optics, Vol. 58, No. 3-4, 10.01.2011, p. 244-256.

Research output: Contribution to journalArticle

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