Selective excitation of the vibrational-rotational states and dissociation of diatomic molecules by picosecond infrared laser pulses: Modeling for HF in the ground electronic state

Abstract

Complete, close to 100%, population transfer between the bound vibrational-rotational states of the HF molecule in the ground electronic state is demonstrated on a picosecond time scale by means of computer simulation within the Schr\"odinger wave-function formalism. The laser-induced dissociation from selectively prepared moderately high vibrational-rotational states is shown to be very efficient, with the dissociation probability approaching 100%. These processes are controlled by ${\mathrm{sin}}^{2}$-shaped linearly polarized picosecond laser pulses in the infrared domain.