These raspberry-like metamolecules react to light’s magnetic field as a loop of wire does to an oscillating magnet.
by Evan Lerner
Researchers at the University of Pennsylvania have now devised a way of mass-producing metamaterials that exhibit magnetic resonancein optical frequencies. Called "raspberry-like metamolecules" due to their unique shape, these nanoscale structures could be used as building blocks for metamaterials that could scatter light as if they had magnetic properties, which could be relevant to applications in optical processing and signal handling. These raspberry-like metamolecules react to light's magnetic field as a loop of wire does to an oscillating magnet.