Photonic quantum technologies promise a revolution of the world of information processing,
from simulation and computing to communication and sensing, thanks to the many …

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 …

Photodynamic therapy (PDT) uses photosensitizers and visible light in combination with
molecular oxygen to produce reactive oxygen species (ROS) that kill malignant cells by …

Superconducting nanowire single-photon detectors with peak efficiencies above 90% and
unrivalled timing jitter (< 30 ps) have emerged as a potent technology for quantum …

We present a compactly integrated, 625 MHz clocked coherent one-way quantum key
distribution system which continuously distributes secret keys over an optical fibre link. To …

Avalanche-photodiode-based near-infrared single-photon detectors have seen rapid
development in the last two decades because of their enormous internal gain, high …

To meet the increasing demand from quantum communications and other photon starved
applications, we have developed various InP-based single-photon detectors, including …

We present a free-running single photon detector for telecom wavelengths based on a
negative feedback avalanche photodiode (NFAD). A dark count rate as low as 1 cps was …

Single-photon detection at near-infrared (NIR) wavelengths is critical for light detection and
ranging (LiDAR) systems used in imaging technologies such as autonomous vehicle …

Picosecond timing of single photons has laid the foundation of a great variety of
applications, from life sciences to quantum communication, thanks to the combination of …