Sharp Images Without Lenses

An ultra-thin optical phased array manipulates incoming light to capture an image

Antireflection with Moth Eye Structures

Glass covered with the new film showed about a ten-fold improvement in contrast ratio

New Alloy for Next Generation of Solar Cells

New material could make semiconductors for concentrator photovoltaics 30 percent cheaper

Color Changing with Polar Oxide Materials

Irradiation with a terahertz laser pulse can significantly enhance the second harmonic generation

Hypercrystals for Faster Optoelectronics

New metamaterial allows extremely high levels of control and enhancement of the emitted light

Controlling Light with Electric Fields

New method to control the amplitude and phase of light pixel by pixel

Butterfly Wings Open Door to New Solar Cells

Nanostructures control scattering, reflection and absorption of different colours of light

First Flat Lens for Immersion Microscope

Metalenses can be tailored for any immersion liquid

Way to More Stable Perovskite Solar Cells

Uncovered mechanism shows how superoxides attack perovskite material

A Perfect Large-Scale Hyperlens

Metamaterial with a hyperbolic dispersion makes far-field sub-diffraction imaging in real time possible