Ultraintense Attosecond Pulse Emission from Relativistic Laser-Plasma Interaction

Abstract

We develop an analytical model for ultraintense attosecond pulse emission in the highly relativistic laser-plasma interaction. In this model, the attosecond pulse is emitted by a strongly compressed electron layer around the instant when the layer transverse current changes the sign and its longitudinal velocity approaches the maximum. The emitted attosecond pulse has a broadband exponential spectrum and a stabilized constant spectral phase $\psi (\omega )=\pm \pi /2-{\psi }_{A_m}$. The waveform of the attosecond pulse is also given explicitly, to our knowledge, for the first time. We validate the analytical model via particle-in-cell (PIC) simulations for both normal and oblique incidence. Based on this model, we highlight the potential to generate an isolated ultraintense phase-stabilized attosecond pulse

arXiv comment12 pages, 7 figures

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Cited by in corpus (4)

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• Orbital-angular-momentum-based experimental test of Hardy's paradox for multisetting and multidimensional systems
• Generation of quasi-monoenergetic positron beams in chirped laser fields
• Physics of the laser-plasma interface in the relativistic regime of interaction