Published November 2019
| public
Journal Article
A 512-Pixel, 51-kHz-Frame-Rate, Dual-Shank, Lens-Less, Filter-Less Single-Photon Avalanche Diode CMOS Neural Imaging Probe
Abstract
We present an implantable single-photon shank-based imager, monolithically integrated onto a single CMOS IC. The imager comprises of 512 single-photon avalanche diodes distributed along two shanks, with a 6-bit depth in-pixel memory and an on-chip digital-to-time converter. To scale down the system to a minimally invasive form factor, we substitute optical filtering and focusing elements with a time-gated, angle-sensitive detection system. The imager computationally reconstructs the position of fluorescent sources within a 3-D volume of 3.4 mm × 600 μm× 400 μm .
Additional Information
© 2019 IEEE. Manuscript received May 14, 2019; revised August 1, 2019; accepted August 28, 2019. Date of current version October 23, 2019. This article was approved by Associate Editor Pedram Mohseni. This work was supported in part by the National Institutes of Health under Grant U01NS090596, in part by the Defense Advanced Research Projects Agency (DARPA) under Contract N66001–17-C-4012, and in part by the U.S. Army Research Laboratory and the U.S. Army Research Office under Contract W911NF-12–1-0594.Additional details
- Eprint ID
- 99588
- Resolver ID
- CaltechAUTHORS:20191031-124926910
- U01NS090596
- NIH
- N66001-17-C-4012
- Defense Advanced Research Projects Agency (DARPA)
- Army Research Laboratory
- W911NF-12-1-0594
- Army Research Office (ARO)
- Created
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2019-10-31Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field