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Resumen de Twisted light beams a greeting across 143 km

Anil Ananthaswamy

  • Twisted light has transmitted information across 143 kilometers of open space--almost 50 times further than the previous record. The breakthrough could revolutionize how people communicate with satellites. Light is an electromagnetic wave that has crests and troughs. It also has a property called phase, which governs when the crests or troughs reach a particular point in space. Normally, all the waves that make up a beam of light have the same phase, so their crests or troughs are in sync.


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