Attosecond Electron Dynamics in Solids
DIPC Seminars
- Speaker
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Ralph Ernstorfer, Fritz Haber Institute, Berlin, Technical Univ. Munich, Garching.
- When
-
2011/01/25
13:00 - Place
- Donostia International Physics Center (DIPC). Paseo Manuel de Lardizabal, 4 (nearby the Facultad de Quimica), Donostia
- Add to calendar
-
iCal
Attosecond Electron Dynamics in Solids
Ralph Ernstorfer
Max Planck Research Group for Structural & Electronic Surface Dynamics,
Fritz Haber Institute, Faradayweg 4-6, 14195 Berlin,
Physics Department E11, Technical University Munich, 85748 Garching,
Max Planck Institute for Quantum Optics, 85748 Garching.
Fundamental electronic processes in condensed matter like electron transport
on atomic
length scales and the many-body response to a sudden perturbation occur on the
attosecond
time scale. In order to access this sub-femtosecond time scale, we apply a
streak camera
operating at optical frequencies in order to time-stamp photoelectrons
generated by an
isolated extreme ultraviolet laser pulse with attosecond duration. This
technique allows us to
measure the relative emission time of valence and core electrons with a
precision of tens of
attoseconds. I will report of recent studies of clean metals and magnesium
covered surfaces
and will discuss the origin of the observed relative delays in the emission of
photoelectrons
from different initial states. I will conclude with recent results on our
attempts to initiate and
control macroscopic currents inside dielectrics with few-cycle laser pulses.