Physics – Quantum Physics
Scientific paper
2003-02-24
J. Opt. B: Quantum Semiclass. Opt. 5, 313 (2003)
Physics
Quantum Physics
15 pages, 5 figures
Scientific paper
10.1088/1464-4266/5/3/318
We carry out a theoretical study of the collective spontaneous emission (superradiance) from an ultrathin film comprised of three-level atoms with $V$-configuration of the operating transitions. As the thickness of the system is small compared to the emission wavelength inside the film, the local-field correction to the averaged Maxwell field is relevant. We show that the interplay between the low-frequency quantum coherence within the subspace of the upper doublet states and the local-field correction may drastically affect the branching ratio of the operating transitions. This effect may be used for controlling the emission process by varying the doublet splitting and the amount of low-frequency coherence.
Antón M. A.
Calderón Óscar G.
Carreño Francisco
Dominguez-Adame Francisco
Malyshev Victor A.
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