Simultaneous control of optical dipole force and coherence creation by super-Gaussian femtosecond pulses inΛ-like atomic systems

Abstract

We report a study of the optical dipole force on a beam of neutral three-level, $\ensuremath{\Lambda}$-like atomic system induced by a femtosecond super-Gaussian pulse. We show that maximum coherence between the ground state $|1\ensuremath{\rangle}$ and the excited state $|2\ensuremath{\rangle}$ could be achieved using a train of femtosecond pulses. In addition, it is possible to control the trajectory of the atoms in an atomic beam by using the same scheme. The robustness of the scheme against the variation of the pulse parameters is also investigated.