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Coherent population trapping and the enhancement of three-wave-mixing efficiency in isotropic media

Vasily G. Arkhipkin, S. A. Myslivets

Quantum Electronics and Laser Science ConferenceMay 22, 19950 citations

CW Nonlinear Resonant Four-Wave Mixing Enchanced by Coherent Population Trapping

V.G. Arkhipkio, S. A. Myslivets, Д. В. Манушкин +1 more

European Quantum Electronics Conference (EQEC)Aug 24, 20050 citations

High-contrast coherent population trapping resonances using four-wave mixing in ^87Rb

Vishal Shah, Svenja A. Knappe, Leo W. Hollberg +1 more

We demonstrate very high-contrast coherent population trapping(1) (CPT) resonances by using four-wave mixing in (87)Rb atoms. In the experiment, we take advantage of the spectral overlap between F=2-->F(?) and F=3-->F(?) optical resonances on the D1 line of (87)Rb and (85)Rb atoms, respectively, to eliminate the DC-light background from the CPT resonance signal. We observe a CPT resonance with a contrast in the range of 90%, compared with a few percent achieved by alternative methods.

Optics LettersApr 17, 200737 citations

Coherent population trapping and vast enhancement of the efficiency of resonant three-wave mixing in isotropic media

Vasily G. Arkhipkin, S. A. Myslivets

A study is made of exactly on-resonant sumfrequency generation in isotropic media under coherent population trapping conditions. A huge increase in the conversion efficiency (by a factor of 10 6 or more) is predicted and the conditions for this enhancement are identified.

Quantum ElectronicsSep 30, 19953 citations

Coherent population trapping in an optically dense medium

M. B. Gornyi, Boris G. Matisov, Yu. V. Rozhdestvenskiǐ

Journal of Experimental and Theoretical PhysicsApr 1, 19891 citation

Entangled Radiation through an Atomic Reservoir Controlled by Coherent Population Trapping

Qian Li, Wenxue Zhong, Xiangming Hu

We show that it is possible to generate Einstein–Podolsky–Rosen (EPR) entangled radiation using an atomic reservoir controlled by coherent population trapping. A beam of three-level atoms is initially prepared in near-coherent population trapping (CPT) state and acts as a long-lived coherence-controlled reservoir. Four-wave mixing leads to amplification of cavity modes resonant with Rabi sidebands of the atomic dipole transitions. The cavity modes evolve into an EPR state, whose degree of entanglement is controlled by the intensities and the frequencies of the driving fields. This scheme uses the long-lived CPT coherence and is robust against spontaneous emission of the atomic beam. At the same time, this scheme is implemented in a one-step procedure, not in a two-step procedure as was required in Phys. Rev. Lett. 98 (2007) 240401.We show that it is possible to generate Einstein–Podolsky–Rosen (EPR) entangled radiation using an atomic reservoir controlled by coherent population trapping. A beam of three-level atoms is initially prepared in near-coherent population trapping (CPT) state and acts as a long-lived coherence-controlled reservoir. Four-wave mixing leads to amplification of cavity modes resonant with Rabi sidebands of the atomic dipole transitions. The cavity modes evolve into an EPR state, whose degree of entanglement is controlled by the intensities and the frequencies of the driving fields. This scheme uses the long-lived CPT coherence and is robust against spontaneous emission of the atomic beam. At the same time, this scheme is implemented in a one-step procedure, not in a two-step procedure as was required in Phys. Rev. Lett. 98 (2007) 240401.

Chinese Physics LettersSep 1, 20082 citations

Resonant Three-Wave Mixing and Coherent Population Trapping

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