Shaping coherent excitation of atoms and molecules by a train of ultrashort laser pulses

Abstract

We propose a mechanism to produce a superposition of atomic and molecular states by a train of ultrashort laser pulses combined with weak control fields. By adjusting the repetition rate of the pump pulses and the intensity of the coupling laser, one can suppress a transition while simultaneously enhancing the desired transitions. As an example, various superpositions of vibrational states of the $K_2$ molecule are shown.

7 pages, 6 figures

References in corpus (2)

• Complete transfer of populations from a single state to a pre-selected superposition of states using Piecewise Adiabatic Passage
• Unitary time-dependent superconvergent technique for pulse-driven quantum dynamics