High suppression in strong-field ionization of laser-irradiated molecule C$_{60}$

We report about the results of our theoretical study of strong-field (multiphoton) above-threshold ionization (ATI) in laser-irradiated carbon fullerene molecule C$_{60}$ under condition of relevant experiment [1]. The problem is addressed within the \textit{velocity-gauge} (VG) formulation of molecular \textit{strong-field approximation} (SFA) [2] essentially exploiting the \textit{density-functional-theory} (DFT) method for numerical composition of initial (laser-free) molecular state using the routines of GAUSSIAN-03 code [3]. The results of our present VG-SFA calculation demonstrate that ionization of C$_{60}$ is to be highly suppressed and reaches saturation at laser peak intensity $I \approx 2 \times 10^{14} W$/cm$^{2}$, in a perfect consistence with relevant experiment [1].\\[4pt] [1] M. Tchaplyguine \textit{et al. } J. Chem. Phys. \textbf{112}, 2781 (2000)\\[0pt] [2] V. I. Usachenko \textit{et al.} Phys. Rev. A \textbf{79}, 023415 (2009)\\[0pt] [3] M. J. Frisch and J. A. Pople. \textbf{Gaussian-03, Revision A.1} (Gaussian, Inc., 2003 Pittsburgh, PA)