Frequency Extension of Atomic Measurement of Microwave Strength Using Zeeman Effect
Frequency Extension of Atomic Measurement of Microwave Strength Using Zeeman Effect
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DOI：
10.1109/tim.2018.2886869
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发表时间：
2019-01
影响因子：
5.6
通讯作者：
M. Kinoshita;Y. Tojima;H. Iida
中科院分区：
文献类型：
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作者：
M. Kinoshita;Y. Tojima;H. Iida
基于原子量子力学的电磁波场强测量有望成为实现稳定可靠测量的创新方法。然而，原子测量的主要问题是可测量的频率被限制在原子的共振频率。因此，在本文中，我们证明了在任意频率的测量使用塞曼效应在静磁场中。将铯蒸气室置于约40 mT的静磁场中，这导致铯原子的共振频率从9.2 GHz偏移到8.2 GHz。此外，在本实验中，在8.2GHz的频率下测量了由于铯原子与微波之间的相互作用而产生的拉比频率。
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.