Angle-Resolved High-Order Above-Threshold Ionization of a Molecule: Sensitive Tool for Molecular Characterization

Journal Article · Fri May 23 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.203003· OSTI ID:21132441

Busuladzic, M ^[1]; Gazibegovic-Busuladzic, A ^[2]; Milosevic, D B ^[2]; Becker, W ^[3]

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1. Medical Faculty, University of Sarajevo, Cekalusa 90, 71000 Sarajevo (Bosnia and Herzegowina)
2. Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina)
3. Max-Born-Institut, Max-Born-Strasse 2a, 12489 Berlin (Germany)

The strong-field approximation for ionization of diatomic molecules by an intense laser field is generalized to include rescattering of the ionized electron off the various centers of its molecular parent ion. The resulting spectrum and its interference structure strongly depend on the symmetry of the ground state molecular orbital. For N{sub 2}, if the laser polarization is perpendicular to the molecular axis, we observe a distinct minimum in the emission spectrum, which survives focal averaging and allows determination of, e.g., the internuclear separation. In contrast, for O{sub 2}, rescattering is absent in the same situation.

• OSTI ID: 21132441
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
ELECTRONS
EMISSION SPECTRA
GROUND STATES
INTERFERENCE
IONIZATION
IONS
LASER RADIATION
LASERS
MOLECULAR ORBITAL METHOD
MOLECULES
NITROGEN
OXYGEN
POLARIZATION
RESCATTERING
SYMMETRY