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With the usage of the postcompression technique, few-cycle joule-class laser pulses are nowadays available extending the state of the art of 100 TW-class laser working at 10 Hz repetition. In this Letter, we explore the potential of wakefield acceleration when driven with such pulses.
Abstract We present a self-consistent theory of strongly nonlinear plasma wakefield (bubble or blowout regime of the wakefield) based on the energy conservation approach. Such wakefields are excited in plasmas by intense laser or particle beam drivers and are characterized by the expulsion of plasma electrons from the propagation axis of the driver.
Abstract In a dense gas plasma a short laser pulse propagates in a relativistic self-trapping mode, which enables the effective conversion of laser energy to the accelerated electrons. This regime sustains effective loading which maximizes the total charge of the accelerating electrons, that provides a large amount of betatron radiation.
Abstract Subluminal and superluminal light pulses have attracted considerable attention in recent decades1,2,3,4, opening perspectives in telecommunications, optical storage and fundamental physics5. Usually achieved in matter, superluminal propagation has also been demonstrated in vacuum with quasi-Bessel beams6,7 or spatio-temporal couplings8,9.
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