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

Butterfly Wing Inspires Photovoltaics

Light absorption can be enhanced by up to 200 percent with optimized nanostructures

Looking Inside Refraction of Metamaterials

Properties of metamaterials can be controlled by the lattice constants

Insect Eyes Inspire Antireflective Coating

Microspheres capture up to 99 percent of light, ranging from ultraviolet into the near infrared

Metasurfaces Form Vortex Beams

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

Optical Control of Valley Polarization

The valley populations can be directly controlled using circularly polarized optical excitation and emission

A Zero-Index Waveguide

Silicon waveguides support phase-free propagation in the telecom regime

Enhancing Optical Forces

New method with a metamaterial opens possibilities within sensor technology and nanoscience