Optimizing Laser Pulses for Narrow-Band Inverse Compton Sources in the High-Intensity Regime

Daniel Seipt, Vasily Yu Kharin, Sergey G. Rykovanov

    Результат исследований: Вклад в журналСтатьярецензирование

    15 Цитирования (Scopus)

    Аннотация

    Scattering of ultraintense short laser pulses off relativistic electrons allows one to generate a large number of X- or gamma-ray photons with the expense of the spectral width - temporal pulsing of the laser inevitable leads to considerable spectral broadening. In this Letter, we describe a simple method to generate optimized laser pulses that compensate the nonlinear spectrum broadening and can be thought of as a superposition of two oppositely linearly chirped pulses delayed with respect to each other. We develop a simple analytical model that allows us to predict the optimal parameters of such a two-pulse - the delay, amount of chirp, and relative phase - for generation of a narrow-band γ-ray spectrum. Our predictions are confirmed by numerical optimization and simulations including three-dimensional effects.

    Язык оригиналаАнглийский
    Номер статьи204802
    ЖурналPhysical Review Letters
    Том122
    Номер выпуска20
    DOI
    СостояниеОпубликовано - 22 мая 2019

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