A Space-Time Sensor for Light-Matter Interactions

Attosecond pulses allow to observe the motions of electrons in atoms

New Transparent Materials Absorb Light

Concept of coherent virtual absorption by temporally shaping the incident waveform

Metalenses With Tunable Features

New devices, made of graphene and a punctured gold surface, could be used for amplitude tunable lenses

Light Pulses Control Neuron Activity

Controlling firing pattern of neurons by manipulating the phase of the spectral components of the light

Concept for a Directional Color Filter

Nanoscale devices divide incident white light into its component colors based on the direction of illumination

Path Length of Light in Opaque Media

A seemingly paradoxical prediction in physics has now been confirmed in an experiment

Looking Inside Refraction of Metamaterials

Properties of metamaterials can be controlled by the lattice constants

Metasurfaces Form Vortex Beams

Any input polarization of light can result in any orbital angular momentum output

Sensing Flexural Motion With Quantum Dots

Quantum dot emission line frequencies as a function of time due to vibrations of the photonic crystal membrane

Random Lasing in an Optical Fiber

A disorder induced localized states form isolated local channels to make the output laser beam highly directional