Journal ArticleDOI
Multilevel coherence effects in a two-level atom driven by a trichromatic field
Z. Ficek,Z. Ficek,Josip Seke,A. V. Soldatov,A. V. Soldatov,Gerhard Adam,Nikolai N. Bogolubov,Nikolai N. Bogolubov +7 more
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TLDR
In this paper, the absorption and dispersion properties of a weak probe field monitoring a two-level atom driven by a trichromatic field were investigated and it was shown that the system can produce a number of multilevel coherence effects for atoms composed of three and more energy levels.About:
This article is published in Optics Communications.The article was published on 2003-03-01. It has received 14 citations till now. The article focuses on the topics: Atomic coherence & Electromagnetically induced transparency.read more
Citations
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Bichromatic and trichromatic manipulation of spontaneous emission in a three-level Λ system
TL;DR: In this article, the spontaneous emission spectrum is numerically calculated by using harmonic expansion and matrix inversion, and two characteristic features are shown: the central resonance peak, which is absent in the case of monochromatic excitation, is recovered for the bichromatic or trichromatically excitation.
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Polychromatic-field-induced transparency and absorption in a three-level Λ system
TL;DR: In this article, an experimental study of atomic coherence and interference in a three-level system of cold Rb atoms driven by multicolor coupling and probe fields is presented.
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Sub-half-wavelength localization of a two-level atom via trichromatic phase manipulation
TL;DR: In this paper, the authors used a trichromatic field to localize a two-level atom in a half-wavelength region by using the relative phases of the sidebands to the central component.
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Sideband control of optical bistability and multistability
Xiang-ming Hu,Jian Wang +1 more
TL;DR: In this article, sideband control of optical bistability and multistability based on trichromatic electromagnetic-field induced transparency and quantum interference was presented. But the sideband amplitudes or the relative phases of the sidebands to the central component were not considered.
Frequency Conversion of Optical Signals Using Coherently Prepared Media
TL;DR: In this paper, the authors investigated the ability to coherently prepare an atomic vapor and to use that coherence to shift optical signals from one frequency to another with high efficiency, bandwidth, and fidelity.
References
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Journal ArticleDOI
Light speed reduction to 17 metres per second in an ultracold atomic gas
Lene Vestergaard Hau,Lene Vestergaard Hau,Stephen E. Harris,Zachary Dutton,Zachary Dutton,Cyrus H. Behroozi,Cyrus H. Behroozi +6 more
TL;DR: In this paper, an experimental demonstration of electromagnetically induced transparency in an ultracold gas of sodium atoms, in which the optical pulses propagate at twenty million times slower than the speed of light in a vacuum, is presented.
Atom-photon interactions
TL;DR: In this article, the physical phenomena resulting from the interactions between atoms and photons are discussed in a self-contained way and can be studied independently, and different theoretical approaches are discussed.
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Lasers without inversion: Interference of lifetime-broadened resonances
TL;DR: It is shown that if two upper levels of a four-level laser system are purely lifetime broadened, and decay to an identical continuum, then there will be an interference in the absorption profile of lower- level atoms, and that this interference is absent from the stimulated emission profile of the upper-level atoms.
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Enhancement of the index of refraction via quantum coherence.
TL;DR: Atoms prepared in a coherent superposition of a ground- (or excited-) state doublet can produce a large resonant index of refraction with vanishing absorption.
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Dispersive properties of electromagnetically induced transparency.
TL;DR: An atomic transition that has been made transparent by applying an additional electromagnetic field exhibits a rapidly varying refractive index with zero group velocity dispersion at line center.