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  4. Single-Photon Avalanche Diode Imagers Applied to Near-Infrared Imaging
 
research article

Single-Photon Avalanche Diode Imagers Applied to Near-Infrared Imaging

Pavia, Juan Mata  
•
Wolf, Martin
•
Charbon, Edoardo  
2014
Ieee Journal Of Selected Topics In Quantum Electronics

Single-photon avalanche diodes (SPADs) can be integrated into large pixel arrays. The aim of this paper is to present a view on how these imagers change the paradigm of wide-field near-infrared imaging (NIRI). Thanks to the large number of pixels that they offer and to their advanced time-resolved measurement capabilities, new approaches in the image reconstruction can be applied. A SPAD imager was integrated in a NIRI setup to demonstrate how it can improve spatial resolution in reconstructed images. The SPAD imager has a time resolution of 97 ps and a picosecond laser source with an average output power of 3 mW was employed. The large amount of data produced by this new setup could not directly be analyzed with state-of-the art image reconstruction algorithms. Therefore a new theoretical framework was developed. Simulations show that millimetric resolution is achievable with this setup. Experimental results have demonstrated that a resolution of at least 5 mm is possible with the current setup. A discussion about how different characteristics of the SPAD imagers affect the NIRI measurements is presented and possible future improvements are introduced.

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Type
research article
DOI
10.1109/Jstqe.2014.2313983
Web of Science ID

WOS:000337955000001

Author(s)
Pavia, Juan Mata  
Wolf, Martin
Charbon, Edoardo  
Date Issued

2014

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Published in
Ieee Journal Of Selected Topics In Quantum Electronics
Volume

20

Issue

6

Article Number

3800908

Subjects

Inverse problems

•

near-infrared imaging (NIRI)

•

single-photon detector

•

time-resolved imaging

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
AQUA  
Available on Infoscience
August 29, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/106183
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