Publications by Kazuhiro Morimoto

Radiation Hardness Study of Single-Photon Avalanche Diode for Space and High Energy Physics Applications

Edoardo Charbon, Emanuele Ripiccini, Ming-Lo Wu, Ekin Kizilkan, Pouyan Keshavarzian, Francesco Gramuglia, Kazuhiro Morimoto, Carlo Alberto Fenoglio

The radiation hardness of 180 nm complementary metal-oxide-semiconductor (CMOS) and 55 nm bipolar-CMOS-double-diffused MOS single-photon avalanche diodes (SPADs) is studied using 10 MeV and 100 MeV protons up to a displacement damage dose of 1 PeV/g. It is ...

MDPI2022

Megapixel time-gated SPAD image sensor for scientific imaging applications

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Andrei Ardelean, Ming-Lo Wu, Arin Can Ülkü, Kazuhiro Morimoto

We present a 1 megapixel single-photon avalanche diode (SPAD) camera featuring 3.8 ns time gating and 24 kfps frame rate for 1-bit images, fabricated in 180 nm CMOS image sensor technology. The SPAD sensor was used to capture 2D and 3D scenes over 2 m with ...

2021

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

Edoardo Charbon, Andrei Ardelean, Ming-Lo Wu, Kazuhiro Morimoto

Advances in high-speed imaging techniques have opened new possibilities for capturing ultrafast phenomena such as light propagation in air or through media. Capturing light in flight in three-dimensional xyt space has been reported based on various types o ...

AMER PHYSICAL SOC2021

Fluorescence lifetime imaging with a megapixel SPAD camera and neural network lifetime estimation

Edoardo Charbon, Claudio Bruschini, Ming-Lo Wu, Kazuhiro Morimoto

Fluorescence lifetime imaging microscopy (FLIM) is a key technology that provides direct insight into cell metabolism, cell dynamics and protein activity. However, determining the lifetimes of different fluorescent proteins requires the detection of a rela ...

NATURE RESEARCH2020

Megapixel time-gated SPAD image sensor for 2D and 3D imaging applications

Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic, Andrei Ardelean, Ming-Lo Wu, Arin Can Ülkü, Kazuhiro Morimoto

We present a 1 Mpixel single-photon avalanche diode camera featuring 3.8 ns time gating and 24 kips frame rate, fabricated in 180 nm CMOS image sensor technology. We designed two pixels with a pitch of 9.4 mu m in 7 T and 5.75 T configurations respectively ...

OPTICAL SOC AMER2020

High fill-factor miniaturized SPAD arrays with a guard-ring-sharing technique

Edoardo Charbon, Kazuhiro Morimoto

We present a novel guard-ring-sharing technique to push the limit of SPAD pixel miniaturization, and to demonstrate the operation of SPAD arrays with a 2.2 mu m-pitch, the smallest ever reported. Device simulation and preliminary tests suggest that the opt ...

OPTICAL SOC AMER2020

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Kazuhiro Morimoto

Radiation Hardness Study of Single-Photon Avalanche Diode for Space and High Energy Physics Applications

Megapixel SPAD cameras for time-resolved applications

Megapixel time-gated SPAD image sensor for scientific imaging applications

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

A Scaling Law for SPAD Pixel Miniaturization

Fluorescence lifetime imaging with a megapixel SPAD camera and neural network lifetime estimation

Megapixel time-gated SPAD image sensor for 2D and 3D imaging applications

High fill-factor miniaturized SPAD arrays with a guard-ring-sharing technique

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A Scaling Law for SPAD Pixel Miniaturization

Fluorescence lifetime imaging with a megapixel SPAD camera and neural network lifetime estimation

Megapixel time-gated SPAD image sensor for 2D and 3D imaging applications

High fill-factor miniaturized SPAD arrays with a guard-ring-sharing technique

Megapixel time-gated SPAD image sensor for scientific imaging applications