Determination of Carrier-Envelope Phase of Relativistic Few-Cycle Laser Pulses by Thomson Backscattering Spectroscopy
arXiv:1106.3895 · doi:10.1103/PhysRevE.85.035401
Abstract
A novel method is proposed to determine the carrier-envelope phase (CEP) of a relativistic few-cycle laser pulse via the central frequency of the isolated light generated from Thomson backscattering (TBS). We theoretically investigate the generation of a uniform flying mirror when a few-cycle drive pulse with relativistic intensity ($I > 10^{18} {\rm{W} \mathord{/ {\vphantom {\rm{W} {\rm{cm}^{\rm{2}}}}}. \kern-\nulldelimiterspace} {\rm{cm}^{\rm{2}}}}$) interacts with a target combined with a thin and a thick foil. The central frequency of the isolated TBS light generated from the flying mirror shows a sensitive dependence on the CEP of the drive pulse. The obtained results are verified by one dimensional particle in cell (1D-PIC) simulations.
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