PROPAGATION OF A LASER PULSE UNDER ELECTROMAGNETICALLY INDUCED TRANSPARENCY CONDITIONS

Tóm tắt

We investigate the propagation dynamics of a pair of probe and
coupling laser pulses in a three-level type-V atomic medium under the condition of
electromagnetically induced transparency (EIT) by numerical solving the MaxwellBloch equations for atoms and fields. Influences of the intensity and pulse area of the
coupling laser on the EIT formation of probe laser pulse are studied in a wide region
from micro- to pico-second of pulse duration. It is found that a nearly solition pulse
can be established at the smallest pulse area in the pico-second region and with the
largest pulse area in the micro-second region. These results can be important for
applications in all-optical switching, and quantum information processing and
transmission.