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 …

Depth and intensity profiling of targets at a range of up to 10 km is demonstrated using time-
of-flight time-correlated single-photon counting technique. The system comprised a pulsed …

The future envisaged global-scale quantum-communication network will comprise various
nodes interconnected via optical fibers or free-space channels, depending on the link …

We have used an InGaAs/InP single-photon avalanche diode detector module in
conjunction with a time-of-flight depth imager operating at a wavelength of 1550 nm, to …

Conventional imaging systems rely upon illumination light that is scattered or transmitted by
the object and subsequently imaged. Ghost-imaging systems based on parametric down …

Reduction in scattering, high absorption, and spectral features of tissue constituents above
1000 nm could help in gaining higher spatial resolution, penetration depth, and specificity …

This work reviews physical concepts, technologies and applications of time-domain diffuse
optics based on time-gated single-photon detection. This particular photon detection …

We demonstrate room temperature heralded single photon generation in a CMOS-
compatible silicon nanophotonic device. The strong modal confinement and slow group …

Quantum key distribution (QKD) relies on quantum communication to allow distant parties to
share a secure cryptographic key. Widespread adoption of QKD in current …

In-field demonstrations in real-world scenarios boost the development of a rising technology
towards its integration in existing infrastructures. Although quantum key distribution (QKD) …