Enhanced microwave electrometry with intracavity anomalous dispersion in Rydberg atoms

Peng, Yandong; Wang, J. L.; Li, C.; Lu, Xihua; Qi, Yihong; Yang, Aihong; Wang, J. Y.

doi:10.1007/s11082-020-2242-9

Cited by 8 publications

(11 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, improvement in measurement sensitivity factor of about 2 is clearly achieved. The enhanced measurement sensitivity of microwave electric field by experiment is smaller than the theoretical calculations [29][30][31], which is caused by the additional losses of the cavity mirrors and the scattering of vapor cell in experiment. The measurement sensitivity may be greatly improved by combining other effective methods, such as the robust Rydberg atom superheterodyne method [17].…”

Section: Resultsmentioning

confidence: 78%

“…Intracavity Rydberg atoms, whose collective effect is greatly enhanced, are considered as a candidate for microwave E-field measurement. The enhanced detection sensitivity of weak microwave E-field with intracavity Rydberg atoms has been investigated in theory [29][30][31]. Both the effects of intracavity Rydberg EIT, intracavity anomalous dispersion and the collective Rabi splitting are calculated and simulated for the microwave E-field measurement, which can greatly improve the measurement sensitivity, while there are no reports of measuring the weak microwave E-field by intracavity Rydberg atoms in experiment to our best knowledge.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Microwave Electric Field Measurement With Cavity-Assisted Rydberg Electromagnetically Induced Transparency

Yuan

Wang

et al. 2022

Front. Phys.

View full text Add to dashboard Cite

We report a scheme for enhancing microwave electric field measurement by cavity-assisted Rydberg electromagnetically induced transparency in the 87Rb coherent atomic system. The vacuum Rabi splitting appears when the probe field is strongly coupled with intracavity atoms. The cavity-assisted electromagnetically induced transparency with dual-peak profile is observed as a strong coupling laser is further introduced into the optical ring cavity. The optimal atomic density, resulting in an appropriate vacuum Rabi splitting interval and cavity-assisted electromagnetically induced transparency amplitude, is determined for the coupling effect criterion of the probe field and intracavity atoms. Finally, the cavity-assisted electromagnetically induced transparency is employed to accurately measure the microwave electric field strength, and a measurement sensitivity factor of about 2 is improved owing to an enhanced photon–atom interaction. This study is beneficial for the development of compact, broadband, and self-calibrating microwave receivers.

show abstract

Section: Resultsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Enhanced Microwave Electric Field Measurement With Cavity-Assisted Rydberg Electromagnetically Induced Transparency

Yuan

Wang

et al. 2022

Front. Phys.

View full text Add to dashboard Cite

show abstract

“…The enhancement of dynamic optical response by RF detuning can be understood by a theoretical simulation based on the optical Bloch equation considering the four energy levels [10,11,13,22,34,36]. Taking the energy level of the intermediate state 5P 3/2 as a reference, the Hamiltonian H can be expressed as a matrix form…”

Section: Resultsmentioning

confidence: 99%

“…Rydberg atoms in highly excited states with one or more electrons of large principal quantum numbers are sensitive to electric fields, very suitable to manufacture atom-based sensor for detecting and receiving communication signals [1]. It has been widely investigated thoroughly both theoretically and experimentally throughout the last decades [2][3][4][5][6][7][8][9][10][11][12][13]. This type of sensors can replace the front-end components and electronics in a conventional antenna/receiver system [14,15], since they have potential advantages over conventional systems.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity improvement of Rydberg atom-based microwave sensing via electromagnetically induced transparency

Cai¹,

Xu²,

You³

et al. 2021

Preprint

View full text Add to dashboard Cite

A highly excited Rydberg atom via electromagnetically induced transparency with two color cascading lasers has extreme sensitivity to electric fields of microwave ranging from 100 MHz to over 1 THz. It can be used as susceptible atom-based microwave communication antennas where the carrier wave usually works exactly resonant to the transition between a pair of adjacent Rydberg states with large electric dipole moment. A technique of superheterodyne with a strong on-resonant local microwave oscillator is employed to induce considerable Autler-Townes splitting where the antennas has a highest dynamic response to another weak target signal microwave carrier. To further improve the sensitivity of atomic antenna in communication, we detune the carrier microwave frequency off resonance forming an asymmetrically optical splitting and fix the coupling laser frequency at the shoulder of the stronger one, and optimize the local field strength simultaneously. It gives a sensitivity of 12.50(04) nVcm −1 • Hz −1/2 . Its enhancement mechanism of sensitivity is also proved by a theoretical simulation.

show abstract

“…When one transition is driven by a intense laser, the second transition spectrum is composed by a resonant doublet with the separation between the two components determined by the laser electric field. This process, well characterised in atomic/molecular and solid state spectroscopy, has received recently a new interest within a different context: the precise determination of a microwave (mw) field amplitude for calibration purposes as in [9,10,11,12,13,14,15,16,17,18,19,20,21,22,23]. The mw radiation is applied to cold atoms in Rydberg states where the electric dipole moment is very large, such that even a weak mw field produces AT splitting.…”

Section: Introductionmentioning

confidence: 99%

Bright and dark Autler-Townes states in the atomic Rydberg multilevel spectroscopy

Bevilacqua,

Arimondo

2022

Preprint

View full text Add to dashboard Cite

We investigated the Autler-Townes splitting produced by microwave transitions between atomic Rydberg states explored by optical spectroscopy from the ground electronic state. The laser-atom Hamiltonian describing the double irradiation of such a multilevel system is analysed on the basis of the Morris-Shore transformation. The application of this transformation to the microwave-dressed atomic system allows the identification of bright, dark, and spectator states associated with different configurations of atomic states and microwave polarisation. We derived synthetic spectra that show the main features of Rydberg spectroscopy. Complex Autler-Townes spectra are obtained in a regime of strong microwave dressing, where a hybridisation of the Rydberg fine structure states is produced by the driving.

show abstract

Enhanced microwave electrometry with intracavity anomalous dispersion in Rydberg atoms

Cited by 8 publications

References 44 publications

Enhanced Microwave Electric Field Measurement With Cavity-Assisted Rydberg Electromagnetically Induced Transparency

Enhanced Microwave Electric Field Measurement With Cavity-Assisted Rydberg Electromagnetically Induced Transparency

Sensitivity improvement of Rydberg atom-based microwave sensing via electromagnetically induced transparency

Bright and dark Autler-Townes states in the atomic Rydberg multilevel spectroscopy

Contact Info

Product

Resources

About