150-TW, 23-fs laser pulses with high spatial and temporal qualities have been generated at 5 Hz from a chirped-pulse amplification Ti:sapphire laser. The temporal and the spatial qualities of the laser pulse were optimized and characterized for high availability in the fields of high-field science and relativistic laser-matter interactions. The pulse duration was optimized by maximizing the spectral bandwidth and by minimizing the spectral phase error. A temporal contrast was enhanced using an ultrafast Pockels cell and a double plasma mirror, and wavefront aberrations were corrected using an adaptive optics system. Spatiotemporal couplings were characterized by measuring a frequency-resolved wavefront to estimate their effect on the peak intensity at the focus. Due to the high spatiotemporal quality resulting from this optimization and characterization of the laser beam, the 5-Hz 150-TW Ti:sapphire laser will be the workhorse for a variety of research on relativistic laser-matter interactions.

中文翻译：

---

具有高时空质量的 5Hz、150TW 钛蓝宝石激光器

已从啁啾脉冲放大钛蓝宝石激光器以 5 Hz 生成具有高空间和时间质量的 150-TW、23-fs 激光脉冲。激光脉冲的时间和空间质量经过优化和表征，以便在高场科学和相对论激光-物质相互作用领域具有高可用性。通过最大化频谱带宽和最小化频谱相位误差来优化脉冲持续时间。使用超快普克尔斯盒和双等离子镜增强了时间对比度，并使用自适应光学系统校正了波前像差。时空耦合的特征是通过测量频率分辨波前来估计它们对焦点处峰值强度的影响。