GRAMS3D
Groupe de recherche en appareillage médical — Université de Sherbrooke. Innovation, prototypage et essais cliniques.
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Découvrez les projets du groupe!
Découvrez les projets du groupe!
Nous sommes heureux de vous présenter le GRAMS3D, un groupe de recherche qui fait progresser les architectures CMOS–SPAD et les capteurs photoniques intégrés en 3D pour l'imagerie de nouvelle génération. Notre équipe se spécialise dans la conception de SPAD, les architectures CMOS et le développement de PCB, repoussant les limites du possible en technologie de détection photonique. Nous accueillons les opportunités de collaboration avec les chercheurs universitaires et les étudiants passionnés par l'avancement des technologies d'imagerie. Intéressé ? Écrivez-nous ! #SPAD #Photonics #3DIntegration #CMOS #Sherbrooke #Quantum #medicalimaging Université de Sherbrooke Institut interdisciplinaire d'innovation technologique - 3IT
Check out the group's projects!
Check out the group's projects!
We're excited to share an overview of the GRAMS3D, our research group that works on advancing CMOS–SPAD architectures and 3D-integrated photonic sensors for next-generation imaging. Our team specializes in SPAD design, CMOS architectures, and PCB development, pushing the boundaries of what's possible in photonic sensing technology. We welcome collaboration opportunities with academic researchers and students passionate about advancing imaging technologies. Interested? Write to us! #SPAD #Photonics #3DIntegration #CMOS #Sherbrooke #Quantum #medicalimaging Université de Sherbrooke Institut interdisciplinaire d'innovation technologique - 3IT
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Grams3D-Info@usherbrooke.ca
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Groupe de recherche en appareillage médical de Sherbrooke - Université de Sherbrooke
Groupe de recherche en appareillage médical de Sherbrooke - Université de Sherbrooke
Institut interdisciplinaire d'innovation technologique
3000 Bd de l'Université Immeuble P2, Sherbrooke
Institut interdisciplinaire d'innovation technologique
Publications
Towards a Multi-Pixel Photon-to-Digital Converter for Time-Bin Quantum Key Distribution
Towards a Multi-Pixel Photon-to-Digital Converter for Time-Bin Quantum Key Distribution
We present an integrated single-photon detection device custom designed for quantum key distribution (QKD) with time-bin encoded single photons. We implemented and demonstrated a prototype photon-to-digital converter (PDC) that integrates an 8 × 8 single-photon avalanche diode (SPAD) array with on-chip digital signal processing built in TSMC 65 nm CMOS. The prototype SPADs are used to validate the QKD functionalities with an array of time-to-digital converters (TDCs) to timestamp and process the photon detection events. The PDC uses window gating to reject noise counts and on-chip processing to sort the photon detections into respective time-bins. The PDC prototype achieved a 22.7 ps RMS timing resolution and demonstrated operation in a time-bin setup with 158 ps time-bins at an optical wavelength of 410 nm. This PDC can therefore be an important building block for a QKD receiver and enables compact and robust time-bin QKD systems with imaging detectors.
Fast neutron radiography-based on single-photon digital photosensor: concept and demonstration
Fast neutron radiography-based on single-photon digital photosensor: concept and demonstration
3D Photon-To-Digital Converter for Radiation Instrumentation: Motivation and Future Works
3D Photon-To-Digital Converter for Radiation Instrumentation: Motivation and Future Works
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