Fast Laser Produces Coherent Soft X-​Rays

New approach should enable studies in the biological, chemical and material sciences

A Momentous View on the Birth of Photoelectrons

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

Nanohighway for Light

Tiny low-energy optical switch rapidly reroutes light in computer chips

A Sub-Picosecond Thin-Disk Laser Oscillator

Lasers achieved an average output power of 350 W, with pulses that are only 940 femtoseconds long

Deep Learning Improves Biomedical Imaging

Artificial intelligence improves quality of images recorded by a relatively new biomedical imaging method

Coin-Sized Infrared Spectrometer

New device makes use of special waveguides with an optical refractive index that can be adjusted externally via an electric field

First All-Metamaterial Optical Gas Sensor

The device is ideal for the Internet of Things and smart home devices to detect changes in the environment

Steering Electrons with Light

Electrons in transition metals get redistributed within a fraction of an optical oscillation cycle

Coupled Exploration of Light and Matter

A new approach to study nonlinear optical properties of polaritons in strongly correlated electronic states

Terahertz Lasers Become Hot

First realization of a terahertz quantum cascade laser operating without cryogenic cooling