Phys. Rev. A 67, 061802(R) (2003) [4 pages]Efficient photon counting and single-photon generation using resonant nonlinear optics
The behavior of an atomic double Λ system in the presence of a strong off-resonant classical field and a few-photon resonant quantum field is examined. It is shown that the system possesses properties that allow a single-photon state to be distilled from a multiphoton input wave packet. In addition, the system is also capable of functioning as an efficient photodetector discriminating between one- and two-photon wave packets with high efficiency. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.061802
DOI:
10.1103/PhysRevA.67.061802
PACS:
42.50.Gy, 42.50.Md, 42.50.Ar
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