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Abstract: The electromagnetic radiation emitted by an ultra-relativistic acceleratedelectron is extremely sensitive to the precise shape of the field driving theelectron. We show that the angular distribution of the photons emitted by anelectron via multiphoton Compton scattering off an intense$I>10^{20}\;\text{W-cm$^2$}$, few-cycle laser pulse provides a direct way ofdetermining the carrier-envelope phase of the driving laser field. Ourcalculations take into account exactly the laser field, include relativisticand quantum effects and are in principle applicable to presently available andfuture foreseen ultra-strong laser facilities.



Author: F. Mackenroth, A. Di Piazza, C. H. Keitel

Source: https://arxiv.org/







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