Electromagnetically induced transparency in the strong blockade regime using the four-photon excitation process in thermal rubidium vapor

Firdoshi, Tanim; Garain, Sujit; Gupta, Vishu; Kara, Dushmanta; Mohapatra, Ashok K.

doi:10.1103/physreva.104.013711

Cited by 6 publications

(1 citation statement)

References 38 publications

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“…Holloway et al have proposed that the threephoton EIT transition scheme could obtain a narrower EIT linewidth to reduce the influence of D [22,31]. The excitation channel of Rydberg EIT can be used to eliminate or weaken the residual Doppler effect, so that weaker RF E-field strength can be measured [32]. However, with the three-photon scheme, the Rabi frequency of each light field and the lifetimes of the two intermediate states will greatly affect the spectrum.…”

Section: Introductionmentioning

confidence: 99%

The effect of the Doppler mismatch in microwave electrometry using Rydberg electromagnetically induced transparency and Autler–Townes splitting

fei¹,

Jia²,

Mei³

et al. 2022

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

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We have systematically investigated the influence of the gas temperature (T), the Rabi frequencies of the probe laser (Ωp), the coupling laser (Ωc) and the radio-frequency (ΩRF) on the Rydberg electromagnetically induced transparency (EIT) and Autler-Townes (AT) splitting (Δf) by defining a general Doppler mismatch factor Dg=ΩRF/Δf in the Rydberg atom-based microwave electrometry. The effect of T on Dg is studied in detail from 0 to 1000 K, the results show that Dg is insensitive to T when T<10 μK or T>10 K, while Dg changes significantly with 10 K>T>10 μK. Then the effects of Ωp, Ωc and ΩRF on factor Dg at T=300 K (typical room temperature) and T=10 μK (typical temperature of cold atom by laser cooling) are studied in detail, respectively. The results show that the linewidth of Rydberg EIT (ΓEIT) can be used as a key parameter to characterize the dependence of Dg on Ωp and Ωc in both cases. Dg is insensitive to T, Ωp and Ωc when ΩRF>3ΓEIT which means that ΓEIT determines the lower limit of the linear region of the radio-frequency (RF) electric field strength measured by EIT-AT splitting. More interesting, the range where Dg is insensitive to Ωp and Ωc can be greatly expanded by lowering the gas temperature to 10 μK. The ranges of parameters where Dg is insensitive to T, Ωp, Ωc and ΩRF are given, and such relationship can be easily scaled to other atomic systems. The results can help the selection of various parameters in the experiments and specific applications to ensure the accuracy of measuring the RF electric field.

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Section: Introductionmentioning

confidence: 99%

The effect of the Doppler mismatch in microwave electrometry using Rydberg electromagnetically induced transparency and Autler–Townes splitting

fei¹,

Jia²,

Mei³

et al. 2022

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

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Electromagnetically induced transparency, narrow absorption and transient response in a three-photon excitation process

Mondal

Das

Dey

et al. 2022

Optik

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Autler–Townes splitting in the trap-loss fluorescence spectroscopy due to single-step direct Rydberg excitation of cesium cold atomic ensemble

Wang

Hou

et al. 2023

AIP Advances

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We experimentally investigate trap-loss spectra of the cesium 6 S1/2( F = 4) → 71 P3/2 Rydberg transition by combining the cesium atomic magneto-optical trap with the narrow-linewidth, continuously tunable 318.6 nm ultraviolet laser. Specifically, the atoms in the magneto-optical trap are excited to the Rydberg state due to the ultraviolet laser single-step Rydberg excitation, which leads to the reduction of atomic fluorescence. Based on the trap-loss spectroscopy technology, the Autler–Townes (AT) splitting due to a strong cooling laser is observed, and the parameter dependence of the AT splitting interval of trap-loss spectroscopy is investigated. The effective temperature of cold atoms is measured by using simplified time-of-flight fluorescence imaging. In addition, closed-loop feedback power stabilization of 318.6 nm ultraviolet laser is carried out. This lays the foundation for further experimental research related to the Rydberg atoms using ultraviolet lasers, which is of great significance for the development of quantum computing and quantum information.

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Electromagnetically induced transparency in the strong blockade regime using the four-photon excitation process in thermal rubidium vapor

Cited by 6 publications

References 38 publications

The effect of the Doppler mismatch in microwave electrometry using Rydberg electromagnetically induced transparency and Autler–Townes splitting

The effect of the Doppler mismatch in microwave electrometry using Rydberg electromagnetically induced transparency and Autler–Townes splitting

Electromagnetically induced transparency, narrow absorption and transient response in a three-photon excitation process

Autler–Townes splitting in the trap-loss fluorescence spectroscopy due to single-step direct Rydberg excitation of cesium cold atomic ensemble

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