A 256 x 256, 100-kfps, 61% Fill-Factor SPAD Image Sensor for Time-Resolved Microscopy Applications

Istvan Gyongy, Neil Calder, Amy Davies, Neale A. W. Dutton, Rory R. Duncan, Colin Rickman, Paul A. Dalgarno, Robert K. Henderson

Research output: Contribution to journalArticle

Abstract

A 256 x256 single-photon avalanche diode image sensor operating at 100 kfps with fill factor of 61% and pixel pitch of 16 μm is reported. An all-nMOS 7T pixel allows gated operation down to 4 ns and ~600-ps fall time with on-chip delay generation. The sensor operates with 0.996 temporal aperture ratio in rolling shutter. Gating and cooling allow the suppression of dark noise, which, in combination with the high fill factor, enables competitive low-light performance with electron multiplying charge-coupled devices while offering time-resolved imaging modes.

LanguageEnglish
Pages547-554
Number of pages8
JournalIEEE Transactions on Electron Devices
Volume65
Issue number2
Early online date21 Dec 2017
DOIs
StatePublished - Feb 2018

Fingerprint

Image sensors
Microscopic examination
Pixels
Avalanche diodes
Charge coupled devices
Photons
Cooling
Imaging techniques
Electrons
Sensors
SPAD

Keywords

  • CMOS single-photon avalanche diode (SPAD)
  • Image sensors
  • Lenses
  • Logic gates
  • Microoptics
  • Microscopy
  • Photonics
  • quanta image sensor
  • single-photon counting (SPC)
  • switched current source (SCS) counter

Cite this

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abstract = "A 256 x256 single-photon avalanche diode image sensor operating at 100 kfps with fill factor of 61{\%} and pixel pitch of 16 μm is reported. An all-nMOS 7T pixel allows gated operation down to 4 ns and ~600-ps fall time with on-chip delay generation. The sensor operates with 0.996 temporal aperture ratio in rolling shutter. Gating and cooling allow the suppression of dark noise, which, in combination with the high fill factor, enables competitive low-light performance with electron multiplying charge-coupled devices while offering time-resolved imaging modes.",
keywords = "CMOS single-photon avalanche diode (SPAD), Image sensors, Lenses, Logic gates, Microoptics, Microscopy, Photonics, quanta image sensor, single-photon counting (SPC), switched current source (SCS) counter",
author = "Istvan Gyongy and Neil Calder and Amy Davies and Dutton, {Neale A. W.} and Duncan, {Rory R.} and Colin Rickman and Dalgarno, {Paul A.} and Henderson, {Robert K.}",
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A 256 x 256, 100-kfps, 61% Fill-Factor SPAD Image Sensor for Time-Resolved Microscopy Applications. / Gyongy, Istvan; Calder, Neil; Davies, Amy; Dutton, Neale A. W.; Duncan, Rory R.; Rickman, Colin; Dalgarno, Paul A.; Henderson, Robert K.

In: IEEE Transactions on Electron Devices, Vol. 65, No. 2, 02.2018, p. 547-554.

Research output: Contribution to journalArticle

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