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Colloquium: From extreme nonlinear optics to ultrafast atomic physics

Wednesday 29 November 2017, 1.30PM

Speaker(s): Prof Anne L'Huillier

Abstract: The interaction of atoms with intense laser radiation leads to the generation of high-order harmonics of the laser field. In the time domain, this corresponds to a train of pulses in the extreme ultraviolet range and with attosecond duration.
The short pulse duration and broad bandwidth of attosecond pulses allow us to measure the phase and amplitude of electronic wave packets created by photoionization, using an interferometric technique. This gives us access to the temporal dynamics of the process that led to this wave-packet.

This presentation will introduce the physics of high-order harmonic generation and attosecond pulses and describe applications concerning photoionization dynamics.

Location: Debye Lecture Theatre, York Plasma Institute