An Ultrathin Flat Lens with a Broad Bandwidth

A fishnet-achromatic-metalens captures 70% of incoming light in frequencies ranging from 640 nanometers to 1200 nanometers

Strain-Engineered Photodetector for Silicon Photonics

Strainoptronics: First efficient 2D material photodetector for telecom wavelengths

Nanomaterial Gives Robots Chameleon Skin

New features include unusual color changes and high touch sensitivity

Printed Perovskite LEDs

Printed LEDs possess very high luminosity and excellent electrical properties

Smallest Cavity for Light

A new type of cavity for graphene plasmons by integrating metallic cubes of nanometer sizes over a graphene sheet

How Twistronics Manipulates the Flow of Light

A promising pathway for leapfrog advancement in imaging, optical-computing technologies and biosensing

Metasurfaces for Ultrathin Camera Lenses

A new device can focus light just like a normal camera lens, but it is thousands of times thinner and can be flexible

Thinner Photonic Crystals

The new insights lead to design rules for new optoelectronic devices for efficient telecommunication and computers

Metasurface Opens World of Polarization

New device may have far-reaching applications in polarization imaging and quantum optics

Spray Coating Stabilizes Solar Cells

New approach offers practical way to make multilayer perovskite solar cells