An on-chip 72×60 angle-sensitive single photon image sensor array for lens-less time-resolved 3-D fluorescence lifetime imaging

Changhyuk Lee, Ben Johnson, Alyosha Molnar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

We present a 72×60, angle-sensitive single photon avalanche diode (A-SPAD) array, able to perform lens-less 3-D fluorescent lifetime imaging. A-SPAD pixels are comprised of (1) a SPAD to resolve precise timing information, reject high-powered UV stimulus, and map the lifetimes of different fluorescent sources and (2) integrated diffraction gratings over the SPAD to extract the incident angle of light, enabling 3-D localization at a micrometer scale. The chip integrates pixel-level counters and shared timing circuitry, and is implemented in unmodified 180nm CMOS.

Original languageEnglish
Title of host publication2014 Symposium on VLSI Circuits, VLSIC 2014 - Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479933273
DOIs
StatePublished - 2014
Event28th IEEE Symposium on VLSI Circuits, VLSIC 2014 - Honolulu, HI, United States
Duration: 10 Jun 201413 Jun 2014

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers

Conference

Conference28th IEEE Symposium on VLSI Circuits, VLSIC 2014
Country/TerritoryUnited States
CityHonolulu, HI
Period10/06/1413/06/14

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