Microwave electrometry via electromagnetically induced absorption in cold Rydberg atoms

Abstract

The atom-based traceable standard for microwave electrometry shows promising advantages by enabling stable and uniform measurement. Here we theoretically propose and then experimentally realize an alternative direct International System of Units (SI)-traceable and self-calibrated method for measuring a microwave electric field strength based on electromagnetically induced absorption (EIA) in cold Rydberg atoms. Comparing with the method of electromagnetically induced transparency, we show that the equivalence relation between microwave Rabi frequency and Autler-Townes splitting is more valid and is even more robust against the experimental parameters in the EIA's linear region. Furthermore, a narrower linewidth of cold Rydberg EIA enables us to realize a direct SI-traceable microwave-electric-field measurement as small as $\sim$100 $\mu \mathrm{V}{\mathrm{cm}}^{-1}$.

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Cited by in corpus (13)

• Deep learning enhanced Rydberg multifrequency microwave recognition
• High efficiency coherent microwave-to-optics conversion via off-resonant scattering
• Quantum sensing of microwave electric fields based on Rydberg atoms
• High-Sensitive Microwave Electrometry with Enhanced Instantaneous Bandwidth
• Sensitivity of Rydberg-atom receiver to frequency and amplitude modulation of microwaves
• Nonlinearity-Enhanced Continuous Microwave Detection Based on Stochastic Resonance
• A self-locking Rydberg atom electric field sensor
• An isotropic antenna based on Rydberg atoms
• Optomechanical Anti-lasing with Infinite Group Delay at a Phase Singularity
• Long-range $CC\Phi$ gates via radio-frequency-induced Förster resonances
• Fingerprint Recognition of Partial Discharge Signals in Deep Learning Enhanced Rydberg Atomic Sensors
• Doppler-enhanced superheterodyne Rydberg microwave receiver
• Rydberg electromagnetically induced transparency and absorption of strontium triplet states in a weak microwave field