Photon-Counting Arrays for Time-Resolved Imaging

The paper presents a camera comprising 512 x 128 pixels capable of single-photon detection and gating with a maximum frame rate of 156 kfps. The photon capture is performed through a gated single-photon avalanche diode that generates a digital pulse upon photon detection and through a digital one-bit counter. Gray levels are obtained through multiple counting and accumulation, while time-resolved imaging is achieved through a 4-ns gating window controlled with subnanosecond accuracy by a field-programmable gate array. The sensor, which is equipped with microlenses to enhance its effective fill factor, was electro-optically characterized in terms of sensitivity and uniformity. Several examples of capture of fast events are shown to demonstrate the suitability of the approach.


Published in:
Sensors, 16, 7, UNSP 1005
Year:
2016
Publisher:
Basel, Mdpi Ag
ISSN:
1424-8220
Keywords:
Laboratories:




 Record created 2016-10-18, last modified 2018-01-28


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