Metasurface enabled quantum edge detection

Metasurfaces provide unique platforms to realize exotic phenomena including negative refraction, achromatic focusing, and electromagnetic cloaking due to the engineered dielectric or metallic architectures. The intersection ...

A world record in detecting extremely low levels of gas impurities

Photoacoustic spectroscopy applied to background-free analyses was used to measure unprecedentedly small trace gas concentrations. Teemu Tomberg from the University of Helsinki developed detection methods that make it possible ...

Sensitive bomb detector to rove in search of danger

European researchers have developed and tested a light-weight device capable of detecting extremely minute quantities of explosives from up to 20 metres away, providing an invaluable law-enforcement tool in the fight against ...

Insights into deadly coral bleaching could help preserve reefs

Coral reefs are stressed the world over and could be in mortal danger because of climate change. But why do some corals die and others not, even when exposed to the same environmental conditions? An interdisciplinary research ...

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