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Abstract of [Son09f]

Multielectron Effects on Strong-field Multiphoton Ionization of Polyatomic Molecules

Sang-Kil Son and Shih-I Chu

Kansas Physical Chemistry Symposium
(University of Kansas, Lawrence, Kansas, United States, November 7, 2009) [oral presentation]

[bib][BibTeX][slide][slide: 3Mb]

We present time-dependent density-functional theory (TDDFT) studies of multiphoton ionization (MPI) of several polyatomic molecules in intense short-pulse laser fields with proper treatment of multielectron effects. For an accurate all-electron solution for polyatomic molecules, we develop a new time-dependent Voronoi-cell finite difference (TDVFD) method with highly adaptive multicenter molecular grids. We apply the method to investigate the orientation dependence of MPI of N2, CO2, and H2O, revealing the importance of multielectron effects from multiple orbital dynamics.

Tags: VFD, TDVFD, Voronoi, strong-field, TDDFT, MPI, N2, CO2, H2O, KU

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