Raman time-delay in attosecond transient absorption of strong-field created krypton vacancy.

ABSTRACT: Strong field ionization injects a transient vacancy in the atom which is entangled to the outgoing photoelectron. When the electron is finally detached, the ion is populated at different excited states with part of coherence information lost. The preserved coherence of matter after interacting with intense short pulses has important consequences on the subsequent nonequilibrium evolution and energy relaxation. Here we employ attosecond transient absorption spectroscopy to measure the time-delay of resonant transitions of krypton vacancy during their creation. We have observed that the absorptions by the two spin-orbit split states are modulated at different paces when varying the time-delay between the near-infrared pumping pulse and the attosecond probing pulse. It is shown that the coupl

SUBMITTER: Wang L 

PROVIDER: S-EPMC10973479 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature