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New look for laser accelerators Physicists in the US have developed a new type of laser-based particle accelerator. Tomas Plettner and co-workers at Stanford University and the Stanford Linear Accelerator (SLAC) used a commercial laser operating at a wavelength of 800 nm to modulate the energy of electrons travelling in a vacuum. The modulation they achieved was equivalent to an electric field gradient of 40 million volts per metre.
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