Abstract
We investigate the propagation of intense probe pulses in a lifetime broadened
<i>Λ</i>-type three-level atomic system with a configuration of electromagnetically induced
transparency. We find that ultraslow optical solitons formed by a balance between dispersion and
nonlinearity can be stored and retrieved in the system by switching off and on a control field. Such
pulses are robust during storage and retrieval, and hence may have potential applications in optical
and quantum information processing.
© 2013 Chinese Optics Letters
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