Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection

McCarthy, Aongus, Krichel, Nils J, Gemmell, Nathan R, Ren, Ximing, Tanner, Michael G, Dorenbos, Sander N, Zwiller, Val, Hadfield, Robert H and Buller, Gerald S (2013) Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection. Optics Express, 21 (7). pp. 8904-8915. ISSN 1094-4087

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Abstract

This paper highlights a significant advance in time-of-flight depth imaging: by using a scanning transceiver which incorporated a free-running, low noise superconducting nanowire single-photon detector, we were able to obtain centimeter resolution depth images of low-signature objects in daylight at stand-off distances of the order of one kilometer at the relatively eye-safe wavelength of 1560 nm. The detector used had an efficiency of 18% at 1 kHz dark count rate, and the overall system jitter was ~100 ps. The depth images were acquired by illuminating the scene with an optical output power level of less than 250 µW average, and using per-pixel dwell times in the millisecond regime.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: Q Science > QC Physics > QC0350 Optics. Light
Depositing User: Nathan Gemmell
Date Deposited: 30 May 2018 12:54
Last Modified: 02 Jul 2019 15:35
URI: http://sro.sussex.ac.uk/id/eprint/76221

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