Journal article
Femtosecond strong-field quantum control with sinusoidally phase-modulated pulses



Publication Details
Authors:
Wollenhaupt, M.; Präkelt, A.; Sarpe-Tudoran, C.; Liese, D.; Bayer, T.; Baumert, T.
Publication year:
2006
Journal:
Physical Review A
Pages range:
063409-1 - 063409-15
Volume number:
73
ISSN:
1050-2947

Abstract
The quantum control of the ionization of potassium atoms using shaped intense femtosecond laser pulses is investigated. We use sinusoidal phase modulation as a prototype for complex shaped pulses to investigate the physical mechanism of the strong-field quantum control by shaped femtosecond light fields. The influence of all parameters characterizing the sinusoidal phase modulation on strong-field-induced dynamics is studied systematically in experiment and theory. Our results are interpreted in terms of the selective population of dressed states (SPODS) which gives a natural physical picture of the dynamics in intense laser fields. We show that modulated femtosecond pulses in combination with photoelectron spectroscopy are a versatile tool to prepare and to probe SPODS. The decomposition of the excitation and ionization process induced by shaped pulses into elementary physically transparent steps is discussed.


Research Areas


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