@conference{Son09f, author={Sang-Kil Son and Shih-I Chu}, title={Multielectron Effects on Strong-field Multiphoton Ionization of Polyatomic Molecules}, year={2009}, month={November 7}, booktitle={Kansas Physical Chemistry Symposium}, school={University of Kansas}, address={Lawrence, Kansas, United States}, keywords={VFD; TDVFD; Voronoi; strong-field; TDDFT; MPI; N2; CO2; H2O; KU;}, note={oral presentation}, abstract={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 N$_2$, CO$_2$, and H$_2$O, revealing the importance of multielectron effects from multiple orbital dynamics.}
}