Warburton, R.E., McCarthy, A., Wallace, A.M., Hernandez-Marin, S., Hadfield, R. , Nam, S.W. and Buller, G.S. (2007) Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength. Optics Letters, 32(15), pp. 2266-2268. (doi: 10.1364/OL.32.002266)
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Abstract
We demonstrate subcentimeter depth profiling at a stand off distance of 330m using a time-of-flight approach based on time-correlated single-photon counting. For the first time to our knowledge, the photon-counting time-of-flight technique was demonstrated at a wavelength of 1550nm using a superconducting nanowire single-photon detector. The performance achieved suggests that a system using superconducting detectors has the potential for low-light-level and eye-safe operation. The system’s instrumental response was 70ps full width at half-maximum, which meant that 1cm surface-to-surface resolution could be achieved by locating the centroids of each return signal. A depth resolution of 4mm was achieved by employing an optimized signal-processing algorithm based on a reversible jump Markov chain Monte Carlo method.
Item Type: | Articles |
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Additional Information: | This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.32.002266. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Hadfield, Professor Robert |
Authors: | Warburton, R.E., McCarthy, A., Wallace, A.M., Hernandez-Marin, S., Hadfield, R., Nam, S.W., and Buller, G.S. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Optics Letters |
Publisher: | Optical Society of America |
ISSN: | 0146-9592 |
Published Online: | 01 January 2007 |
Copyright Holders: | Copyright © 2007 Optical Society of America |
First Published: | First published in Optics Letters 32(15):2266-2268 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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