Origins of Rydberg-Atom Electrometer Transient Response and Its Impact on Radio-Frequency Pulse Sensing

Bohaichuk, Stephanie M.; Booth, Donald; Nickerson, Kent; Tai, Harry; Shaffer, James P.

doi:10.1103/physrevapplied.18.034030

Cited by 23 publications

(14 citation statements)

References 37 publications

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“…For giving more details of experimental parameters, as an example for ω p = 65 μm, the probe Rabi frequency is varied from 2π × 5.22 MHz to 2π × 12.49 MHz, corresponding to probe power varied from 0.22 μW to 1.26 μW, while the coupling laser beam waist is ω c = 80 μm and its power is 10 mW. All results show that the response bandwidths decrease with p at certain beam waist, which is consistent with the previous work that the probe Rabi frequency lows to 2π × 0.65 MHz [32]. Therefore, it is advantageous to use lower p to get a fast response for fast-timing applications.…”

Section: Resultssupporting

confidence: 88%

“…The response bandwidths of Rydberg system consist of the time of reaching steady state and the transit time [32], which are related to Rabi frequency of excitation lasers and the excitation volume. When we study the steady-state part, the transit time is fixed, while when we study the transit time, the time of build steady-state is fixed.…”

Section: Resultsmentioning

confidence: 99%

“…Some investigations aim to improve the data transfer capacity by employing multiple bands and multiple channels [28,29], multiple species [30] and spatially distributed atomic receiver array [31]. Further, the time-dependent response of Rydberg receiver to pulse-modulated electric fields is investigated under different laser conditions, which shows the origins of Rydberg-Atom electrometer transient response [32,33] by investigation of the rise and fall times for the receiver response to a transient signal, separately. The direct investigation of the response of a Rydberg atom-based superheterodyne receiver is not reported yet.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of response bandwidth and sensitivity of Rydberg receiver using multi-channel excitations

Hu,

Jiao,

et al. 2023

EPJ Quantum Technol.

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We investigate the response bandwidth of a superheterodyne Rydberg receiver at a room-temperature vapor cell, and present an architecture of multi-channel lasers excitation to increase the response bandwidth and keep sensitivity, simultaneously. Two microwave fields, denoted as a local oscillator (LO) $E_{\text{LO}}$ E LO and a signal field $E_{\text{SIG}}$ E SIG , couple two Rydberg states transition of $|52D_{5/2}\rangle \to |53P_{3/2}\rangle $ | 52 D 5 / 2 〉 → | 53 P 3 / 2 〉 . In the presence of the LO field, the frequency difference between two fields can be read out as an intermediate frequency (IF) signal using Rydberg electromagnetically induced transparency (EIT) spectroscopy. The bandwidth of the Rydberg receiver is obtained by measuring the output power of IF signal versus the frequency difference between two fields. The bandwidth dependence on the Rabi frequency of excitation lasers is presented, which shows the bandwidth decrease with the probe Rabi frequency, while it is quadratic dependence on the coupling Rabi frequency. Meanwhile, we investigate the effect of probe laser waist on the bandwidth, showing that the bandwidth is inversely proportional to the laser waist. We achieve a maximum response bandwidth of the receiver about 6.8 MHz. Finally, we design an architecture of multi-channel lasers excitation for increasing the response and keeping the sensitivity, simultaneously. Our work has the potential to extend the applications of Rydberg atoms in communications.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Improvement of response bandwidth and sensitivity of Rydberg receiver using multi-channel excitations

Hu,

Jiao,

et al. 2023

EPJ Quantum Technol.

View full text Add to dashboard Cite

show abstract

“…Therefore, it is advantageous to use lower Ω p to get a fast response for fast-timing applications. This is because the steady state is rapidly built at lower Ω p , in response to effective alteration of the EIT by the MW field [32]. The results also show the bandwidths are disparate for different probe beam waists with the same Ω p .…”

Section: Methodsmentioning

confidence: 88%

Section: Methodsmentioning

confidence: 99%

Improvement of response bandwidth of Rydberg Receiver using an atomic array

Jiao

et al. 2023

Preprint

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We investigate the response bandwidth of a superheterodyne Rydberg receiver at a room-temperature vapor cell, and present an architecture of atomic array to increase the response bandwidth. Two microwave fields, denoted as a local oscillator (LO) ELO and a signal field ESig, couple two Rydberg states transition of |52D5/2⟩ → |53P3/2⟩. In the presence of the LO field, the frequency difference between two fields can be read out as an intermediate frequency (IF) signal using Rydberg electromagnetically induced transparency (EIT) spectroscopy. The bandwidth of the Rydberg receiver is obtained by measuring the output power of IF signal versus the frequency difference between two fields. The bandwidth dependence on the Rabi frequency of excitation lasers is presented, which shows the bandwidth decrease with the Rabi frequency of probe laser, while it is quadratic dependence on the Rabi frequency of coupling laser. Meanwhile, we investigate the effect of probe laser waist on the bandwidth, showing that the bandwidth is inversely proportional to the laser waist. We achieve a maximum response bandwidth of the receiver about 6.8~MHz. Finally, we design an architecture of atomic array for increasing the response and keeping the sensitivity, simultaneously. Our work has the potential to extend the applications of Rydberg atoms in communications.

show abstract

Ultra-wide dual-band Rydberg atomic receiver based on space division multiplexing radio-frequency chip modules

Zhang,

Liu,

Liu

et al. 2024

Chip

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Origins of Rydberg-Atom Electrometer Transient Response and Its Impact on Radio-Frequency Pulse Sensing

Cited by 23 publications

References 37 publications

Improvement of response bandwidth and sensitivity of Rydberg receiver using multi-channel excitations

Improvement of response bandwidth and sensitivity of Rydberg receiver using multi-channel excitations

Improvement of response bandwidth of Rydberg Receiver using an atomic array

Ultra-wide dual-band Rydberg atomic receiver based on space division multiplexing radio-frequency chip modules

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