Tightly Localized Stationary Pulses in Multi-Level Atomic System

Abstract

We show the pulse matching phenomenon can be obtained in the general multi-level system with electromagnetically induced transparency (EIT). For this we find a novel way to create tightly localized stationary pulses by using counter-propagating pump fields. The present process is a spatial compression of excitation so that it allows us to shape and further intensify the localized stationary pulses, without using standing waves of pump fields or spatially modulated pump fields.

5 pages, 3 figures; final version (Fig.3 is revised); to appear in Phys. Rev. A

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