M Wollenhaupt et al 2007 J. Phys.: Conf. Ser. 88 012053 doi:10.1088/1742-6596/88/1/012053
M Wollenhaupt, T Bayer, M Krug, C Sarpe-Tudoran and T Baumert
Show affiliationsWe report on a physical mechanism of coherent control with intense shaped femtosecond laser pulses. We study photoelectron spectra from multi-photon ionization of potassium atoms and dimers using tailored femtosecond laser pulses. Our results are interpreted in terms of Selective Population of Dressed States (SPODS). Two realizations of SPODS by Photon Locking (PL) via pulse sequences and Rapid Adiabatic Passage (RAP) via chirped pulses are discussed. New physical mechanisms arise, when both PL and RAP are at play simultaneously. Control by the combined effect of PL and RAP is studied by mapping out a two-parameter Quantum Control Landscape (QCL) for selective population of dressed states.
32.80.Qk Coherent control of atomic interactions with photons
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
32.80.Rm Multiphoton ionization and excitation to highly excited states
Issue 1 (2007)
M Wollenhaupt et al 2007 J. Phys.: Conf. Ser. 88 012053
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