Igniting the air for atmospheric research
Vienna, Austria (SPX) Feb 20, 2015 - It looks a bit like a lightsaber from Star Wars: when an extremely intense laser pulse is sent through the air, it can focus itself, creating a narrow filament of light. By shooting such filaments into the sky and analysing back-scattered light, it would be possible to trace pollutants in the atmosphere. To achieve this, lasers with mid-infrared wavelengths are required. However, reaching ... more
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