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Cooperative Emission of a Coherent Superflash of Light

Abstract : We investigate the transient coherent transmission of light through an optically thick cold stron-tium 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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Submitted on : Thursday, December 4, 2014 - 11:37:51 AM
Last modification on : Tuesday, December 15, 2020 - 3:52:03 PM
Long-term archiving on: : Monday, March 9, 2015 - 5:57:15 AM


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Cc Kwong, T Yang, Ms Pramod, K Pandey, D Delande, et al.. Cooperative Emission of a Coherent Superflash of Light. Physical Review Letters, American Physical Society, 2014, 113, pp.223601. ⟨10.1103/PhysRevLett.113.223601⟩. ⟨hal-00994145v2⟩



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