Influence of Permanent Dipole and Dynamic Core-Electron Polarization on Tunneling Ionization of Polar Molecules
We present a detailed theoretical investigation on strong-field ionization of polar (CO and NO) as well as nonpolar molecules (N₂, O₂, and CO₂). Our results indicate that accounting for the Stark correction in the molecular tunneling ionization theory leads to overall fairly good agreements with numerical solutions of the time-dependent Schrödinger equation. Furthermore, we show that the effect of dynamic core-electron polarization, in general, has a weak influence on the angle-dependent ionization probability. However, in the case of CO we confirm the recent finding by B. Zhang, J. Yuan, and Z. Zhao [Phys. Rev. Lett. 111, 163001 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.163001] that accounting for dynamic core-polarization is crucial to achieving an overall good agreement with experiments.
V. Hoang et al., "Influence of Permanent Dipole and Dynamic Core-Electron Polarization on Tunneling Ionization of Polar Molecules," Physical Review A, vol. 95, no. 2, American Physical Society (APS), Feb 2017.
The definitive version is available at https://doi.org/10.1103/PhysRevA.95.023407
Keywords and Phrases
Molecules; Polarization, Ionization Probabilities; Nonpolar Molecules; Numerical Solution; Permanent Dipoles; Strong Field Ionization; Theoretical Investigations; Tunneling Ionization; Tunneling Ionization Theory, Ionization
International Standard Serial Number (ISSN)
Article - Journal
© 2017 American Physical Society (APS), All rights reserved.
01 Feb 2017