Halting a wave in its tracks

Topological ideas have recently taken the center stage of modern electromagnetics. Typical topological photonic systems are based on nonreciprocal materials, a class of materials that enables asymmetric light–matter interactions. ...

Detecting viruses in a pinprick

Scientists at Swansea University, Biovici Ltd and the National Physical Laboratory have developed a method to detect viruses in very small volumes.

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