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

Abstract

We present combined experimental and theoretical results on strong-field ionization of oriented carbonyl-sulphide 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.

13 pages, 10 figures

References in corpus (10)

• Photoelectron angular distributions from strong-field ionization of oriented molecules
• Laser-induced alignment and orientation of quantum-state-selected large molecules
• Field-free orientation of CO molecules by femtosecond two-color laser fields
• Alignment-Dependent Ionization of N${}_2$, O${}_2$, and CO${}_2$ in Intense Laser Fields
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• One-Electron Ionization of Multielectron Systems in Strong Nonresonant Laser Fields
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• Influence of molecular symmetry on strong-field ionization: Studies on ethylene, benzene, fluorobenzene, and chlorofluorobenzene
• Ionization of 1D and 3D oriented asymmetric top molecules by intense circularly polarized femtosecond laser pulses
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Cited by in corpus (18)

• Manipulation of Molecules with Electromagnetic Fields
• Multiorbital tunneling ionization of the CO molecule
• Dynamic core polarization in strong-field ionization of CO molecules
• Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules
• Time-dependent generalized-active-space configuration-interaction approach to photoionization dynamics of atoms and molecules
• Ionization of 1D and 3D oriented asymmetric top molecules by intense circularly polarized femtosecond laser pulses
• Making the best of mixed-field orientation of polar molecules: A recipe for achieving adiabatic dynamics in an electrostatic field combined with laser pulses
• $R$-matrix with Time-dependence Theory for Ultrafast Atomic Processes in Arbitrary Light Fields
• Two-center minima in harmonic spectra from aligned polar molecules
• Non-adiabatic effects in long-pulse mixed-field orientation of a linear polar molecule
• Laser-polarization-dependent photoelectron angular distributions from polar molecules
• Orientation Dependent Dissociative Ionization of H${}_2$ in Strong Elliptic Laser Fields: Modification of the release time through molecular orientation
• Multielectron effects in strong-field ionization of oriented OCS
• Shaping of the time-evolution of field-free molecular orientation by THz laser pulses
• All-Electron, Density Functional-Based Method for Angle-Resolved Tunneling Ionization in the Adiabatic Regime
• Multielectron effect in the strong-field ionization of aligned nonpolar molecules
• Strong-field double ionization dynamics of vibrating HeH${}^{+}$ versus HeT${}^{+}$
• Effect of Stark shift on low-energy interference structure in strong-field ionization