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Frequency Extension of Atomic Measurement of Microwave Strength Using Zeeman Effect
摘要： Measuring the field strength of an electromagnetic wave based on atomic quantum mechanics is expected to be an innovative method to realize stable and reliable measurements. However, the major issue of atomic measurements is that the measurable frequency is limited to the resonant frequency of atoms. Therefore, in this paper, we demonstrate the measurement at arbitrary frequencies using the Zeeman effect in a static magnetic field. A cesium vapor cell is placed in a static magnetic field of approximately 40 mT, which causes the resonant frequency of the cesium atom to shift from 9.2 to 8.2 GHz. In addition, the Rabi frequency due to the interaction between cesium atoms and microwaves is measured at the frequency of 8.2 GHz in this experiment.
关键词： frequency measurement,microwave measurements,metrology,microwave spectroscopy,electromagnetic measurements,Atom optics,atomic measurements,measurement standards
更新于2025-09-23 15:22:29
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[IEEE 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018) - Paris, France (2018.7.8-2018.7.13)] 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018) - Feasibility Study for Atomic Measurement of Microwave Strength at Arbitrary Frequencies Within the Full X-Band
摘要： In this paper, the double-resonance spectra of cesium atoms in a glass cell inserted in a WR-90 waveguide were obtained in DC magnetic fields with field strengths of tens of milliTesla. This result confirmed that the resonant lines at both ends of the double-resonance spectrum shifted to 8.24 GHz and 10.18 GHz, respectively, due to the Zeeman effect with the DC magnetic flux density of 40 mT. This result is useful as a feasibility study for the atomic measurement of a microwave strength at arbitrary frequencies within the full X-band.
关键词： Microwave bands,Atom optics,Cesium,Spectroscopy,Microwave measurement,Atomic measurements
更新于2025-09-10 09:29:36