Discrete frequency modes, or bins, present a blend of opportunities and challenges for
photonic quantum information processing. Frequency-bin-encoded photons are readily …

We review the current status of single-photon-source and single-photon-detector
technologies operating at wavelengths from the ultraviolet to the infrared. We discuss …

Quasi-phase-matched interactions in waveguides with quadratic nonlinearities enable
highly efficient nonlinear frequency conversion. In this paper, we demonstrate the first …

Quantum imaging is a multifaceted field of research that promises highly efficient imaging in
extreme spectral ranges as well as ultralow‐light microscopy. Since the first proof‐of …

Broken symmetries induce strong even-order nonlinear optical responses in materials and
at interfaces. Unlike conventional covalently bonded nonlinear crystals, van der Waals …

Silicon carbide (SiC) polytypes are emerging for integrated nonlinear and quantum
photonics due to their wide-bandgap energies, second-order optic nonlinearity and process …

Optical nanoantennas have shown a great capacity for efficient extraction of photons from
the near to the far field, enabling directional emission from nanoscale single-photon …

We generate pulsed, two-mode squeezed states in a single spatiotemporal mode with mean
photon numbers up to 20. We directly measure photon-number correlations between the two …

Nonclassical states of light are an essential resource for many emerging quantum
technologies and applications ranging from information processing, encrypted …

Abstract Applications of Integrated Optics to quantum sources, detectors, interfaces,
memories and linear optical quantum computing are described in this review. By their …