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Proceedings Paper

Long-range depth imaging using time-correlated single-photon counting
Author(s): Nils J. Krichel; Aongus McCarthy; Andrew M. Wallace; Jing Ye; Gerald S. Buller
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Paper Abstract

Active, three-dimensional long-range imaging has varied applications in a number of disciplines, including manufacturing, environmental sensing and defence. Common constraints often include low average and peak illumination powers to ensure eye-safety, making the potentially high sensitivity of the single-photon counting technique a distinct advantage. We present a scanning time-of-flight imager based on high repetition-rate (>MHz) pulsed illumination and a silicon single-photon detector. In advanced photon-counting experiments, we recently employed the system for unambiguous range resolution at several kilometres target distance, multiple-surface resolution based on adaptive algorithms, and a cumulative data acquisition method that facilitates detector characterisation and evaluation. This article reviews these achievements and identifies multi-spectral imaging as a possible future application.

Paper Details

Date Published: 17 August 2010
PDF: 12 pages
Proc. SPIE 7780, Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon, 77801I (17 August 2010); doi: 10.1117/12.876144
Show Author Affiliations
Nils J. Krichel, Heriot-Watt Univ. (United Kingdom)
Aongus McCarthy, Heriot-Watt Univ. (United Kingdom)
Andrew M. Wallace, Heriot-Watt Univ. (United Kingdom)
Jing Ye, Heriot-Watt Univ. (United Kingdom)
Gerald S. Buller, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7780:
Detectors and Imaging Devices: Infrared, Focal Plane, Single Photon
Eustace L. Dereniak; Randolph E. Longshore; Manijeh Razeghi; John P. Hartke; Ashok K. Sood; Paul D. LeVan, Editor(s)

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