Attosecond pulse characterization with coherent Rydberg wavepackets

Abstract

We propose a new technique to fully characterize the temporal structure of extreme ultraviolet pulses by ionizing a bound coherent electronic wavepacket. The populated energy levels make it possible to interfere different spectral components leading to quantum beats in the photoelectron spectrum as a function of the delay between ionization and initiation of the wavepacket. The influence of the dipole phase, which is the main obstacle for state-of-the-art pulse characterization schemes, can be eliminated by angle integration of the photoelectron spectrum. We show that particularly atomic Rydberg wavepackets are ideal and that wavepackets involving multiple electronic states provide redundant information which can be used to cross-check the consistency of the phase reconstruction.

12 pages, 8 figures

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Cited by in corpus (6)

• A new method for measuring angle-resolved phases in photoemission
• Attosecond transient absorption of a bound wave packet coupled to a smooth continuum
• Characterization of attosecond pulses in the soft x-ray regime
• Time-resolved buildup of two-slit-type interference from a single atom
• Gauge-invariant absorption of light from a coherent superposition of states
• Pulse analysis by delayed absorption from a coherently excited atom