Nikolai D. Klimkin

Nov 1, 2024 | nature.com | Omer Kneller |Nikolai D. Klimkin |Michael Kruger |Doron Azoury |Ayelet J. Uzan-Narovlansky |Barry D. Bruner | +4 more

AbstractAttosecond transient absorption resolves the instantaneous response of a quantum system as it interacts with a laser field, by mapping its sub-cycle dynamics onto the absorption spectrum of attosecond pulses. However, the quantum dynamics are imprinted in the amplitude, phase and polarization state of the attosecond pulses. Here we introduce attosecond transient interferometry and measure the transient phase, as we follow its evolution within the optical cycle.