We propose a scheme of transient laser manipulation and cooling of two-level quantum systems with narrow natural linewidths by a sequence of counterpropagating laser pulses with special frequency chirping. Interaction with a large number of laser pulses within the decay time decreases drastically the cooling time of such systems. © 1996 The American Physical Society.

• Received 11 September 1995

DOI:https://doi.org/10.1103/PhysRevA.53.2885