Storage and Release of Subradiant Excitations in a Dense Atomic Cloud

Autor: Giovanni Ferioli, Antoine Glicenstein, Loic Henriet, Igor Ferrier-Barbut, Antoine Browaeys
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Physical Review X, Vol 11, Iss 2, p 021031 (2021)
Druh dokumentu: article
ISSN: 2160-3308
DOI: 10.1103/PhysRevX.11.021031
Popis: We report the observation of subradiance in dense ensembles of cold ^{87}Rb atoms operating near Dicke’s regime of a large number of atoms in a volume with dimensions smaller than the transition wavelength. We validate that the atom number is the only cooperativity parameter governing subradiance. We probe the dynamics in the many-body regime and support the picture that multiply excited subradiant states are built as a superposition of singly excited states that decay independently. Moreover, we implement an experimental procedure to release the excitation stored in the long-lived modes in a pulse of light. This technique is a first step towards the realization of tailored light storing based on subradiance.
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