Three-photon Rydberg-atom-based radio-frequency sensing scheme with narrow linewidth

被引：10

作者：

Bohaichuk, Stephanie M. ^{[1
]}

Ripka, Fabian ^{[1
]}

Venu, Vijin ^{[1
]}

Christaller, Florian ^{[1
]}

Liu, Chang ^{[1
]}

Schmidt, Matthias ^{[1
]}

Kuebler, Harald ^{[1
,2
]}

Shaffer, James P. ^{[1
]}

机构：

[1] Quantum Valley Ideas Labs, 485 Wes Graham Way, Waterloo, ON N2L 0A7, Canada

[2] Univ Stuttgart, Phys Inst 5, Pfaffenwaldring 57, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW APPLIED | 2023年 / 20卷 / 06期

关键词：

ELECTROMAGNETICALLY INDUCED TRANSPARENCY; ELECTROMETRY;

D O I：

10.1103/PhysRevApplied.20.L061004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate Rydberg atom-based radio-frequency sensing with a colinear three-photon scheme in a room-temperature cesium vapor cell that minimizes residual Doppler broadening of the probe-laser absorption feature. A sub-200-kHz spectral linewidth is observed and extends the self-calibrated Autler-Townes sensing regime to weaker fields by a factor of 18 compared to the theoretical limit of the most commonly used two-photon scheme. The sensitivity of the method to microsecond pulses is shown to be sufficient to detect radio-frequency Rabi frequencies of 27r x 0.44 MHz using a 480-kHz band-width at 108.9 GHz, demonstrating the ability to sense time-dependent signals suitable for radar and communications.

引用

页数：6

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