VIBRATIONALLY STATE-SELECTIVE ELECTRONIC EXCITATION OF DIATOMIC-MOLECULES BY ULTRASHORT LASER-PULSES

Vibrationally state-selective complete population transfer from the gr ound electronic state to the excited electronic state is demonstrated on a femtosecond time scale for the (XII)-I-2 and A(2) Sigma(+) states of the OH molecule by means of computer simulation within the Schrodi nger wave-function formalism. State-selective population transfer with in the excited electronic state A(2) Sigma(+) of OH is demonstrated as well. These processes are controlled by shaped linearly polarized fem tosecond laser pulses in the ultraviolet and in the infrared region, c orrespondingly, with the probability of the population transfer being close to 100%.