Speaker
Description
Photon to Digital Converters (3D-PDCs) are next-generation digital silicon photomultipliers (SiPMs) that vertically integrate a sensing layer of Single Photon Avalanche Diodes (SPADs) with a custom CMOS active quenching circuit and processing electronics. This design enables individual-SPAD control, reducing system noise and offering ~100 ps single-photon timing resolution. The 'fully digital' philosophy avoids the analog-to-digital conversions used in SiPMs, decreasing power consumption while supporting customizability. The project aims to be a drop-in replacement for SiPMs in a wide range of applications from quantum measurements to radiation detection, fundamental nuclear and high-energy physics, and medical devices. This talk will cover 3D-PDC design, current performance status, the outlook for future systems utilizing the device, and remaining R&D challenges.