Quantum sensing: analysis of Rydberg sensors for e-field sensing and its applications

Talha Minhas

doi:10.1117/12.2687060

13 March 2024 Quantum sensing: analysis of Rydberg sensors for e-field sensing and its applications

Talha Minhas

Proceedings Volume 12912, Quantum Sensing, Imaging, and Precision Metrology II; 1291206 (2024) https://doi.org/10.1117/12.2687060
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

An antenna is a key component of E-field signal pickup. However, an antenna has major limitations due to the metal-based probes, the geometry it carries, and the use of metal transmission lines; this can lead to perturbations or disturbance of the fields which limits the precision for field sensing. Rydberg atoms such as Cesium (Cs) or Rubidium (Rb) are utilized for Rydberg sensing. This can be utilized over a large range of frequencies from DC MHz and THz upto (>100 GHz) to measure amplitude, polarization, power, phase, and Angle-of-Arrival of RF Efield. Rydberg sensor detection scheme provides a multitude of applications, including far field characterization using near field or subwavelength imaging, strong RF E-field measurements, weak field detections, mapping of microwave circuitry, Binary Phase Shift Keying (BPSK), Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) signals, metrology, and radars. Recently, practical RF E-field probes such as the RFP and movable probe have been prototyped for application specific RF sensing and measurement needs, further, antenna and waveguide embedded Rydberg sensors have also been developed. Few limitations in the Rydberg sensing scheme are due to lasers, EIT line-width, earth magnetic effects, photodiode circuit noise, and vapor cell in-homogeneity. The purpose of the review is to brief about the thematic work done across the Rydberg atom domain and its applications as RF E-field sensors. The findings of this review indicate the advantages and applications of Rydberg atom sensing as well as the gaps and uncertainties the scheme carries.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Talha Minhas "Quantum sensing: analysis of Rydberg sensors for e-field sensing and its applications", Proc. SPIE 12912, Quantum Sensing, Imaging, and Precision Metrology II, 1291206 (13 March 2024); https://doi.org/10.1117/12.2687060

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