Journal
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
Volume 20, Issue 6, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2014.2342197
Keywords
Photon counting; CMOS imagers; single-photon avalanche diode (SPAD); 2-D imaging; 3-D ranging; time-of-flight; photon tagging; time-correlated single-photon counting (TCSPC); light detection and ranging (LIDAR)
Categories
Funding
- MiSPiA Project under the EC FP7-ICT Framework, G.A. [257646]
- MiSPiA Project under the EC FP7-ICT Framework, G.A. [257646]
Ask authors/readers for more resources
We present a CMOS imager consisting of 32 x 32 smart pixels, each one able to detect single photons in the 300-900 nm wavelength range and to perform both photon-counting and photon-timing operations on very fast optical events with faint intensities. In photon-counting mode, the imager provides photon-number (i.e., intensity) resolved movies of the scene under observation, up to 100 000 frames/s. In photon-timing, the imager provides photon arrival times with 312 ps resolution. The result are videos with either time-resolved (e.g., fluorescence) maps of a sample, or 3-D depth-resolvedmaps of a target scene. The imager is fabricated in a cost-effective 0.35-mu m CMOS technology, automotive certified. Each pixel consists of a single-photon avalanche diode with 30 mu m photoactive diameter, coupled to an in-pixel 10-bit time-to-digital converter with 320-ns full-scale range, an INL of 10% LSB and a DNL of 2% LSB. The chip operates in global shutter mode, with full frame times down to 10 mu s and just 1-ns conversion time. The reconfigurable imager design enables a broad set of applications, like time-resolved spectroscopy, fluorescence lifetime imaging, diffusive optical tomography, molecular imaging, time-of-flight 3-D ranging and atmospheric layer sensing through LIDAR.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available