On an overcast day, ultrafast lasers could clear a path through the clouds, allowing easier contact with satellites traveling high above Earth.
Currently, cloudy weather limits scientists’ ability to send data to satellites via lasers, because the clouds scatter the lasers’ light. But a powerful, fast-pulsing laser can zap a tiny, cloud-free channel, allowing a second laser to slip through the hole and transmit information, a new study finds. The technique could assist scientists working to create worldwide quantum communications networks that rely on lasers to transmit particles of light, or photons.
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