A Funnel of Light

New device could serve as a new platform for hypersensitive optical detectors

New Photon Source for Encrypted Communication

Quantum-enhanced optical systems operating within the 2- to 2.5-μm spectral region

Topological States in Photonic Crystals

Topological protection offers new prospects for manipulating classical and quantum information

Mystery of Liquid Light Interactions

New approach lays the ground for better all-optical data processing

Machine Learning for Quantum Optics

AI can reconstruct quantum states from experimental data in the presence of noise

New Kind of Colloidal Quantum Dot Photodetectors

Intraband absorption and photodetection in heavily doped PbS colloidal quantum dots in the 5–9 μm range

Further Step to Quantum Dot Lasers

A quantum dot LED also operates as an optically pumped laser

Counting Photons for SI-Standards

New method to measure the detection efficiency of single-photon detectors at wavelengths near 851 nm and 1533.6 nm

Multiplication of the Orbital Angular Momentum

New method combines circular-sector transformations into a single optical element

A Momentous View on the Birth of Photoelectrons

The first sub-femtosecond study of the linear photon momentum transfer during an ionisation