Demonstration of acceleration of relativistic electrons at a dielectric microstructure using femtosecond laser pulses
2016
Acceleration of electrons using laser-driven dielectric microstructures is a promising technology for the miniaturization of particle accelerators. Achieving the desired GV m−1 accelerating gradients is possible only with laser pulse durations shorter than ∼1 ps. In this Letter, we present, to the best of our knowledge, the first demonstration of acceleration of relativistic electrons at a dielectric microstructure driven by femtosecond duration laser pulses. Using this technique, an electron accelerating gradient of 690±100 MV m−1 was measured—a record for dielectric laser accelerators.
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