title: Determination of carrier-envelope phase of relativistic few-cycle laser pulses by Thomson backscattering spectroscopy.
abstract: A method is proposed to determine the carrier-envelope phase (CEP) of a relativistic few-cycle laser pulse via the frequency of the Thomson backscattering (TBS) light. We theoretically investigate the generation of a flying mirror when a few-cycle drive pulse with relativistic intensity interacts with a target combined with a thin and a thick foil. The frequency of the 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 simulations and are explained by an analytical model.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Center for Applied Physics and Technology (CAPT), Peking University, Beijing 100871, China. mengwen@pku.edu.cn
authors.forename: M
authors.initials: M
authors.lastname: Wen
authors.forename: L L
authors.initials: LL
authors.lastname: Jin
authors.forename: H Y
authors.initials: HY
authors.lastname: Wang
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.forename: B F
authors.initials: BF
authors.lastname: Shen
authors.forename: Y R
authors.initials: YR
authors.lastname: Lu
authors.forename: J E
authors.initials: JE
authors.lastname: Chen
authors.forename: X Q
authors.initials: XQ
authors.lastname: Yan