Atoms and molecules may coherently absorb multiple photons beyond the minimal number required for ionization driven by a strong laser fields,leading to discrete peaks in the photoelectron spectrum spaced by the photon energy,i.e.above threshold ionization(ATI)as firstly observed by P.Agostini et al in 1979 [1].The primary phase of the light-molecule interaction is the photon energy absorption and deposition.As compared to atoms where the electron keeps most of the absorbed photon energy,the additional vibrational and rotational nuclear motions of molecules also serve as energy reservoir.The photon energy deposits into the nuclei governs the succeeding dynamics and thus the fate of the molecules.