MATCHED PULSES AND ELECTROMAGNETICALLY INDUCED TRANSPARENCY FOR THE INTERACTION OF LASER-PULSE PAIRS WITH A DOUBLE-VEE SYSTEM

We demonstrate the occurrence of electromagnetically induced transpare ncy with pulse matching in the propagation of two probe pulses through a double-vee (DV) system prepared by a pair of strong coupling fields . Pulse matching is connected to the phenomenon of coherent population trapping. We show that the space-time evolution of the probe pulses i s determined by a pair of normal modes that describe the propagation o f the pulsed excitation through the medium. The establishment of the p ulse-matching propagation regime and the transparency for the probe pu lses are related to the absorption properties of the normal modes.