Off-resonant electronic state dynamics in the laser field
Abstract
The density probability dynamics of the second electronically excited state are investigated using a short, intense UV laser pulse that pumps the NH system from the ground state to the first excited state in a three-electronic-state model. The influence of density on different pulse durations of the applied pump is examined under conditions where the first excited electronic state is switched off. The study shows that the Fast Fourier transform (FFT) of the photon energy and electric field provides insight into the density probabilities of the second excited electronic state, which is located far from the laser center, for various pulse durations. Variations in pulse duration are found to significantly affect the dissociation dynamics of the system. The one-dimensional time-dependent Schrödinger equation (TDSE) is employed to analyze molecular dynamics within the multiconfigurational time-dependent Hartree (MCTDH) framework.