Electromagnetically induced cross focusing in a four-level atomic medium
نویسندگان
چکیده
منابع مشابه
Enhanced cross-phase modulation based on a double electromagnetically induced transparency in a four-level tripod atomic system.
We report experimental observations on the simultaneous electromagnetically induced transparency (EIT) effects for probe and trigger fields (double EIT) as well as the enhanced cross-phase modulation (XPM) between the two fields in a four-level tripod EIT system of the D1 line of 87Rb atoms. The XPM coefficients (larger than 2 x 10(-5) cm2/W) and the accompanying transmissions (higher than 60%)...
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متن کاملComment on "Electromagnetically induced left handedness in optically excited four-level atomic media".
In a recent paper (Phys. Rev. Lett. 96, 053601 (2006)) Thommen and Mandel discussed a novel scheme to induce left-handedness and negative refraction in an atomic four-level scheme [1]. The proposal is based on a coherent cross-coupling between electric and magnetic dipole transitions, which couple to the electric and magnetic field components of the probe field. A very important feature of the ...
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We show that left-handed properties can be electromagnetically induced in a general four-level atomic medium for a finite spectral range. We use an electric (magnetic) atomic transition as an electric (magnetic) resonator to modify the permittivity (permeability), both at the same frequency. The implementation of the four-level model is carried out in atomic hydrogen and neon. In each case the ...
متن کاملElectromagnetically induced transparency in an entangled medium.
We theoretically investigate light propagation and electromagnetically induced transparency in a quasi-one-dimensional gas in which atoms interact strongly via exchange interactions. We focus on the case in which the gas is initially prepared in a many-body state that contains a single excitation and conduct a detailed study of the absorptive and dispersive properties of such a medium. This sce...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America B
سال: 2016
ISSN: 0740-3224,1520-8540
DOI: 10.1364/josab.33.001574