Light from Exotic Particle States

A new type of light-emitting diode uses emission from the radiative decay of exciton complexes

New Form of a Laser for Sound

New approach for a phonon laser could lead to breakthroughs in sensing and information processing

Shortest Ultraviolet Laser Pulse Ever

Generation of few-cycle deep ultraviolet pulses via frequency upconversion of 5-fs near-infrared pulses in argon

Ghost Imaging with FELs

New method could make it easier to study interactions of ultrabright X-rays with matter

A Microlaser Emitting Helical Light

A microlaser based on a novel design allows emitting light in chiral modes, thus producing corkscrews of light

Photons for Stronger Cyber Security

A new trick keeps the entangled photons in sync as they travel different paths through a network

Record Efficiency for Perovskite-Based LED

Rational molecular passivation is responsible for high-performance in the near-infrared

Optical Tweezers Combined with X-Rays

Nanoscale ​tractor beams used to hold and manipulate crystals in solution

Novel Form of Graphene-Based Metamaterial

New material opens new avenues in thermophotovoltaics, photodetectors and many other optical applications

The Taming of the Light Screw

Scientists create high-order harmonics from solids with controlled polarization states