Phase Modulation in Rydberg Dressed Multi-Wave Mixing processes

Zhang, Zhaoyang; Zheng, Huaibin; Yao, Xin; Tian, Yaling; Che, Junling; Wang, Xiuxiu; Zhu, Dayu; Zhang, Yanpeng

doi:10.1038/srep10462

Cited by 23 publications

(18 citation statements)

References 28 publications

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“…In general, the two primarily-dressed states induced by E 2 can be written as ( )( ) can be obtained via solving the coupled density matrix equations [18], as [19]. Similarly, primarily-dressed states induced by E 4 can be written as…”

Section: The Laser Beammentioning

confidence: 99%

Polarized Autler–Townes splitting of Rydberg six-wave mixing

Che

Zhang

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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Polarized Autler-Townes (AT) splitting of six-wave mixing (SWM) involving Rydberg atoms is for the first time observed in a thermal vapor cell. By scanning the frequency detuning of the dressing field, AT splitting of Rydberg SWM is compared with that of non-Rydberg SWM with an elliptically polarized probe field. It is demonstrated that the AT spectra are strongly dependent on the interaction between Rydberg atoms. Moreover, AT splitting of SWM is cyclically modulated via a multi-dark state and presented by the corresponding spatial SWM AT splitting images. The theoretical calculations are in good agreement with the experimental results.

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Section: The Laser Beammentioning

confidence: 99%

Polarized Autler–Townes splitting of Rydberg six-wave mixing

Che

Zhang

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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“…Holloway et al [32] have investigated the relationship between the Rabi frequency of resonant RF transitions between Rydberg states and the resultant ATS splitting in Rydberg-EIT spectra measured in room-temperature atomic vapor. In related work, the enhancement and suppression of multi-wave mixing (MWM) in five-level systems [33] has been studied, and the effect of Rydbergatom interactions was explored [34]. Spectra and spatial images of probe and MWM signals were obtained for six-wave [35] and eight-wave implementations [36].…”

Section: Introductionmentioning

confidence: 99%

Transition from electromagnetically induced transparency to Autler–Townes splitting in cold cesium atoms

et al. 2018

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Electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) are two similar yet distinct phenomena that modify the transmission of a weak probe field through an absorption medium in the presence of a coupling field, featured in a variety of three-level atomic systems. In many applications it is important to distinguish EIT from ATS splitting. We present EIT and ATS spectra in a three-level cascade system, involving cold cesium atoms in the S 35 1 2 Rydberg state. The EIT linewidth, γ EIT , defined as the full width at half maximum of the transparency window, and the ATS splitting, γ ATS , defined as the peak-to-peak distance between AT absorption peaks, are used to delineate the EIT and ATS regimes and to characterize the transition between the regimes. In the coldatom medium, in the weak-coupler (EIT) regime γ EIT ≈A + B( cwhere Ω c and Ω p are the coupler and probe Rabi frequencies, Γ eg is the spontaneous decay rate of the intermediate 6P 3/2 level, and parameters A and B that depend on the laser linewidth. We explore the transition into the strong-coupler (ATS) regime, which is characterized by the relation γ ATS ≈Ω c . The experiments are in agreement with numerical solutions of the Master equation. Our analysis accounts for non-ideal conditions that exist in typical realizations of Rydberg-EIT, including laser-frequency jitter, Doppler mismatch of the utilized two-color Rydberg EIT system, and strong probe fields. The obtained criteria to distinguish cold-atom EIT from ATS are readily accessible and applicable in practical implementations.

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“…However, MWM signals generated from high-order nonlinear optical processes such as six-wave mixing (SWM) and eightwave mixing (EWM) are much weaker than EIT signals [21]. In addition, Rydberg excitation can further suppress the signal intensity and decrease the signal-to-noise ratio [22].…”

Section: Introductionmentioning

confidence: 99%

Parametric amplification of Rydberg six- and eight-wave mixing processes

Zhang

Guo

et al. 2018

Photon. Res.

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We study the parametric amplification of electromagnetically induced transparency-assisted Rydberg six-and eight-wave mixing signals through a cascaded nonlinear optical process in a hot rubidium atomic ensemble both theoretically and experimentally. The shift of the resonant frequency (induced by the Rydberg-Rydberg interaction) of parametrically amplified six-wave mixing signal is observed. Moreover, the interplays between the dressing effects and Rydberg-Rydberg interactions in parametrically amplified multiwave mixing signals are investigated. The linear amplification of Rydberg multiwave mixing processes with multichannel nature acts against the suppression caused by Rydberg-Rydberg interaction and dressing effect.

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Phase Modulation in Rydberg Dressed Multi-Wave Mixing processes

Cited by 23 publications

References 28 publications

Polarized Autler–Townes splitting of Rydberg six-wave mixing

Polarized Autler–Townes splitting of Rydberg six-wave mixing

Transition from electromagnetically induced transparency to Autler–Townes splitting in cold cesium atoms

Parametric amplification of Rydberg six- and eight-wave mixing processes

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