Ionization of oriented carbonyl sulfide molecules by intense circularly polarized laser pulses

Journal Article · Mon Feb 14 23:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.023405· OSTI ID:21537172

Dimitrovski, Darko; Abu-samha, Mahmoud; Madsen, Lars Bojer; Filsinger, Frank; Meijer, Gerard; Kuepper, Jochen ^[1]; Holmegaard, Lotte; Kalhoej, Line ^[2]; Nielsen, Jens H ^[3]; Stapelfeldt, Henrik ^[2]

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1. Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)
2. Department of Chemistry, Aarhus University, DK-8000 Aarhus C (Denmark)
3. Department of Physics, Aarhus University, DK-8000 Aarhus C (Denmark)

We present combined experimental and theoretical results on strong-field ionization of oriented carbonyl sulfide molecules by circularly polarized laser pulses. The obtained molecular frame photoelectron angular distributions show pronounced asymmetries perpendicular to the direction of the molecular electric dipole moment. These findings are explained by a tunneling model invoking the laser-induced Stark shifts associated with the dipoles and polarizabilities of the molecule and its unrelaxed cation. The focus of the present article is to understand the strong-field ionization of one-dimensionally-oriented polar molecules, in particular asymmetries in the emission direction of the photoelectrons. In the following article [Phys. Rev. A 83, 023406 (2011)] the focus is to understand strong-field ionization from three-dimensionally-oriented asymmetric top molecules, in particular the suppression of electron emission in nodal planes of molecular orbitals.

• OSTI ID: 21537172
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
BEAMS
CARBON COMPOUNDS
CARBON OXYSULFIDE
DIPOLE MOMENTS
DIPOLES
DISTRIBUTION
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON EMISSION
EMISSION
IONIZATION
LASER RADIATION
MOLECULES
MULTIPOLES
ONE-DIMENSIONAL CALCULATIONS
PHYSICAL PROPERTIES
POLARIZABILITY
POLARIZED BEAMS
PULSES
RADIATIONS
SULFUR COMPOUNDS
THREE-DIMENSIONAL CALCULATIONS
TUNNEL EFFECT