Two-Center Interference in the Photoionization Delays of Kr_{2}. Academic Article uri icon

abstract

  • We present the experimental observation of two-center interference in the ionization time delays of Kr_{2}. Using attosecond electron-ion-coincidence spectroscopy, we simultaneously measure the photoionization delays of krypton monomer and dimer. The relative time delay is found to oscillate as a function of the electron kinetic energy, an effect that is traced back to constructive and destructive interference of the photoelectron wave packets that are emitted or scattered from the two atomic centers. Our interpretation of the experimental results is supported by solving the time-independent Schrdinger equation of a 1D double-well potential, as well as coupled-channel multiconfigurational quantum-scattering calculations of Kr_{2}. This work opens the door to the study of a broad class of quantum-interference effects in photoionization delays and demonstrates the potential of attosecond coincidence spectroscopy for studying weakly bound systems.

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.25

author list (cited authors)

  • Heck, S., Han, M., Jelovina, D., Ji, J., Perry, C., Gong, X., ... Wrner, H. J.

citation count

  • 2

complete list of authors

  • Heck, Saijoscha||Han, Meng||Jelovina, Denis||Ji, Jia-Bao||Perry, Conaill||Gong, Xiaochun||Lucchese, Robert||Ueda, Kiyoshi||Wörner, Hans Jakob

publication date

  • September 2022