Fluorescence imaging in the second near-infrared (NIR-II) window enables deep-tissue
imaging with high resolution and improved contrast by taking advantage of the reduced light …

At the core of quantum photonic information processing and sensing, two major building
pillars are single-photon emitters and single-photon detectors. In this review, we …

Light scattering by biological tissues sets a limit to the penetration depth of high-resolution
optical microscopy imaging of live mammals in vivo. An effective approach to reduce light …

High-dimensional photon states (qudits) are pivotal to enhance the information capacity,
noise robustness, and data rates of quantum communications. Time-bin entangled qudits …

Two decades after their demonstration, superconducting nanowire single-photon detectors
(SNSPDs) have become indispensable tools for quantum photonics as well as for many …

Single photon detectors are indispensable tools in optics, from fundamental measurements
to quantum information processing. The ability of superconducting nanowire single photon …

Integrated quantum photonics offers a promising path to scale up quantum optics
experiments by miniaturizing and stabilizing complex laboratory setups. Central elements of …

Optical microscopy is a valuable tool for in vivo monitoring of biological structures and
functions because of its noninvasiveness. However, imaging deep into biological tissues is …

A broad range of scientific and industrial disciplines require precise optical measurements at
very low light levels. Single-photon detectors combining high efficiency and high time …

We report on the fabrication and characterization of single-photon-sensitive WSi
superconducting detectors with wire widths from 1 μm to 3 μm. The devices achieve the …