In the field of nanophotonics, researchers strive to precisely control light and its interaction with matter. A few successes include record-setting photovoltaic efficiencies, sensors capable of detecting single molecules and trace amounts of viruses and bacteria, and therapies that can kill tumors noninvasively. Futuristic technologies, such as solar sails for near light-speed space propulsion, quantum photonic computers, and sensors for deep-sea ocean exploration, are also in the works.
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