Single-photon detectors based on superconducting thin films have become a viable class of
technologies for widespread usage in quantum optics. In this tutorial paper we introduce the …

Deterministic generation of single photons is essential for many quantum information
technologies. A bulk optical nonlinearity emitting a photon pair, where the measurement of …

Superconducting nanowire single-photon detectors (SNSPDs) are the highest-performing
photon-counting technology in the near-infrared region. Because of delay-line effects, large …

Photonic integrated circuits (PICs) are expected to play a significant role in the ongoing
second quantum revolution, thanks to their stability and scalability. Still, major upgrades are …

Optical communications and high-speed optoelectronics are enabling technologies for
modern information networks. Driven by the need for improved bandwidth, high efficiency …

We demonstrate a molybdenum silicide superconducting nanowire single-photon detector
heterogeneously integrated onto a thin-film lithium niobate waveguide. The detector …

Superconducting nanowire single-photon detectors (SNSPDs) show near unity efficiency,
low dark count rate, and short recovery time. Combining these characteristics with temporal …

Photon number resolving (PNR) capability is very important in many optical applications,
including quantum information processing, fluorescence detection, and few-photon-level …

We consider main methods for detecting single photons used in quantum communications,
including the quantum key distribution (QKD) technology. Two most promising single photon …

Photon number resolving (PNR) capability is very important in many optical applications,
including quantum information processing, fluorescence detection, and few-photon-level …