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Lab lightning strikes same place more than twice

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Ashley N. Paddock, [email protected]

With the help of a laser-based lightning rod, laboratory-generated lightning was coaxed to strike the same place not just twice but numerous times, and contrary to the path of least resistance. This advance demonstrates the potential of such rods for research and protection. In earlier experiments, femtosecond lasers were used to produce a virtual lightning rod from ultrashort filaments of ionized gas that act as electrical guide wires. Now, for the first time, researchers in France have used laser-induced atmospheric filaments to reroute an electrical discharge from striking the...Read full article

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    Published: May 2012
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    AIPAmerican Institute of PhysicsAurélien HouardEuropefemtosecond lasersFranceLaboratoire d’Optique Appliquéelaser filamentlaser lightning rodlaser-induced atmospheric filamentslightning rodsphotonicsplanar electrodesResearch & Technologyspherical electrodesTech PulseLasers

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