Phase- and helicity-dependent effects in three-color ionization

• Authors: Magda Fifirig , Marius Stroe
• Languages of publication: EN

Abstracts

EN

We study the two-photon ionization of the hydrogen atom from its ground state by a three-color electromagnetic field consisting of a superposition of an IR laser and two of its consecutive odd harmonics of order 2p−1 and 2p+1, withp a positive integer and constant relative phase difference. The ionization process due to the net absorption of the energy 2pħω (ω being the IR laser frequency) is considered. The influence of phase difference and helicity on the azimuthal angular distribution of the ejected photoelectrons is illustrated in the case in which the two harmonics have identical polarizations. Phase effect on the alignment of the differential ionization rate is also investigated.

Keywords

EN

hydrogen atom; multiphoton ionization; quantum interference; dichroic effects; phase control; 32.80.Rb.; 32.80.Rm; 32.80.Qk; 32.80.Ys

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2004
• Volume: 2
• Issue: 2
• Pages: 266-276

Dates

published

1 - 6 - 2004

online

1 - 6 - 2004

Contributors

author

Magda Fifirig

• Department of Chemistry, University of Bucharest, Bd. Regina Elisabeta 4-12, R-70346, Bucharest, Romania

author

Marius Stroe

• Department of Chemistry, University of Bucharest, Bd. Regina Elisabeta 4-12, R-70346, Bucharest, Romania

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Identifiers

DOI

10.2478/BF02475632