Single-photon detectors (SPDs) are the most sensitive instruments for light detection. In the
near-infrared range, SPDs based on III–V compound semiconductor avalanche photodiodes …

The recent developments in time-domain diffuse optics that rely on physical concepts (eg,
time-gating and null distance) and advanced photonic components (eg, vertical cavity …

An ever wider variety of applications employ Single Photon Avalanche Diodes (SPADs) for
the detection of faint optical signals. SPADs are pn junction biased above the breakdown …

Light is a powerful tool to non-invasively probe highly scattering media for clinical
applications ranging from oncology to neurology, but also for molecular imaging, and quality …

The ability to detect single photons is becoming an enabling key capability in an increasing
number of fields. Indeed, its scope is not limited to applications that specifically rely on single …

Many demanding photonic applications require the acquisition of images at very low light-
level conditions and at high speed. Advanced imagers available on the market are generally …

Many demanding applications require single-photon detectors with very large active area,
very low noise, high detection efficiency, and precise time response. Single-photon …

We present the design and characterization of a large-area, fast-gated, all-digital single-
photon detector with programmable active area, internal gate generator, and time-todigital …

Diffuse optical tomography (DOT) is one of the emerging modalities for the non-invasive
imaging of thick biological tissues using near-infrared (NIR) light. This article reviews the …

This paper presents a 32× 32 pixel image sensor for time-gated fluorescence lifetime
detection based on single-photon avalanche diodes. The sensor, fabricated in a high …