Abstract
The traceability of microwave electric field is measured based on the Rydberg atomic quantum interference effect. The rubidium atomic vapor cell at room temperature is used as the probe, and the Autler-Townes splitting of two-photon electromagnetically-induced transparency, three-photon electromagnetically-induced transparency and three-photon electromagnetically-induced absorption effect are analyzed theoretically. The measurement limit of atomic shot noise is also discussed. This method is not only suitable for the traceability and self-calibration measurement of the microwave electric field but also for the sub-wavelength imaging and vector measurement of the microwave electric field and will provide a reference for further miniaturization and integration of the atomic microwave probe.
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