Cavity-assisted spontaneous emission of a single three-level atom as a single-photon source

Stimulated Raman interaction of a classically pumped single three-level \(\Lambda\)-type atom in a resonator cavity featuring both radiative and unwanted losses is studied. It is shown that in the regime of stimulated adiabatic Raman passage the excited outgoing wave packet of the cavity-assisted el...

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Bibliographic Details
Published inarXiv.org
Main Authors Khanbekyan, Mikayel, Welsch, Dirk-Gunnar
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 19.11.2009
Subjects
Atmospheric pressure
Cavity resonators
Electromagnetic fields
Electromagnetism
Spontaneous emission
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Summary:Stimulated Raman interaction of a classically pumped single three-level \(\Lambda\)-type atom in a resonator cavity featuring both radiative and unwanted losses is studied. It is shown that in the regime of stimulated adiabatic Raman passage the excited outgoing wave packet of the cavity-assisted electromagnetic field can be prepared in a one-photon Fock state with high efficiency. In this regime, the spatio-temporal shape of the wave packet does not depend on the interaction shape of the pump field, provided that the interaction of the atom with the pump is time-delayed with respect to the interaction of the atom with the cavity-assisted field. Therefore, the scheme can be used to generate a sequence of identical radiation pulses each of almost one-photon Fock state. It is further shown that the spatio-temporal shape of the outgoing wave packet can be manipulated by controlling the time of interaction between the atom and the cavity-assisted electromagnetic field.
ISSN:2331-8422