Sensitive Optical Sensors for Air Pollution

Gold disk-shaped nanoparticles emit unusual amounts of ultraviolet light

New Way of Photon-Upconversion

Innocuous radiation penetrates living tissue without the damage caused by high-intensity light exposure

Superhighway for the Quantum Internet

New concept for the inline measurement of spatially encoded multiphoton quantum states

Six-Color Holographic Color Print

Holographic colour prints can provide enhanced security in anti-counterfeiting applications

Polarization Switching for Excitonic Circuits

New method to control exciton flows at room temperature for energy-efficient devices

Perovskite Solar Cell Achieves 28% Efficiency

Technology leader’s solar cell exceeds highest ever performing single-junction silicon solar cell

Extreme Asymmetry in Metasurfaces

New devices can be good or bad reflectors depending on the angle the light hits them

Strong Interactions Between Light and Sound

Strong-coupling regime between light and high-frequency acoustic vibrations demonstrated

Hiding Images with a Plasmonic Sandwich

New technology for anti-counterfeiting security, infrared tagging or infrared camouflages

Metamaterial Changes Color of Light

A strong bulk second-order nonlinear response emerges in a plasmonic nanorod composite