A 512-Pixel, 51-kHz-Frame-Rate, Dual-Shank, Lens-Less, Filter-Less Single-Photon Avalanche Diode CMOS Neural Imaging Probe | Zendy

Jaebin Choi | Zendy; Adriaan J. Taal | Zendy; Eric H. Pollmann | Zendy; Changhyuk Lee | Zendy; Kukjoo Kim | Zendy; Laurent Moreaux | Zendy; M. L. Roukes | Zendy; Kenneth L. Shepard | Zendy

Open Access

A 512-Pixel, 51-kHz-Frame-Rate, Dual-Shank, Lens-Less, Filter-Less Single-Photon Avalanche Diode CMOS Neural Imaging Probe

Author(s) -

Jaebin Choi,

Adriaan J. Taal,

Eric H. Pollmann,

Changhyuk Lee,

Kukjoo Kim,

Laurent Moreaux,

M. L. Roukes,

Kenneth L. Shepard

Publication year - 2019

Publication title -

ieee journal of solid-state circuits

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.571

H-Index - 215

eISSN - 1558-173X

pISSN - 0018-9200

DOI - 10.1109/jssc.2019.2941529

Subject(s) - frame rate , single photon avalanche diode , optics , pixel , cmos , diode , filter (signal processing) , lens (geology) , image sensor , avalanche diode , frame (networking) , dual (grammatical number) , physics , optoelectronics , materials science , avalanche photodiode , detector , computer science , telecommunications , computer vision , voltage , breakdown voltage , quantum mechanics , art , literature

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 three-dimensional volume of 3.4 mm × 600 µ m × 400 µ m.

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