Imaging plasmonic fields with atomic spatiotemporal resolution*

We propose a scheme for the reconstruction of plasmomic fields at isolated nanoparticles from infrared-streaked extreme-ultraviolett photoemission spectra. Based on quantum-mechanically modeled spectra [1,2], we demonstrate and analyze the accurate imaging of the IR-streaking-pulse-induced transient plasmonic fields at gold nanospheres with sub-femtosecond temporal and sub-nanometer spatial resolution [3]. [1] J. Li, E. Saydanzad, and U. Thumm, Phys. Rev. A \textbf{94}, 051401(R) (2016). [2] J. Li, E. Saydanzad, and U. Thumm, Phys. Rev. A \textbf{95}, 043423 (2017). [3] J. Li, E. Saydanzad, and U. Thumm, submitted.