Cooperative Emission of a Coherent Superflash of Light.

نویسندگان

  • C C Kwong
  • T Yang
  • M S Pramod
  • K Pandey
  • D Delande
  • R Pierrat
  • D Wilkowski
چکیده

We investigate the transient coherent transmission of light through an optically thick cold strontium gas. We observe a coherent superflash just after an abrupt probe extinction, with peak intensity more than three times the incident one. We show that this coherent superflash is a direct signature of the cooperative forward emission of the atoms. By engineering fast transient phenomena on the incident field, we give a clear and simple picture of the physical mechanisms at play.

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عنوان ژورنال:
  • Physical review letters

دوره 113 22  شماره 

صفحات  -

تاریخ انتشار 2014