| （英） |
The growing industrial demand for radio frequency (RF) has led to the need for precision measurements of RF physical quantities. Particularly, RF attenuation is important for power level extension and sensor linearity evaluation. In this study, the quantum measurement method of RF attenuation based on the Rabi frequency was realized using double-resonance spectroscopy, in which the interaction among cesium atoms and RF waves was optically read out by a laser [1]. The quantum measurement is expected to have advantages over conventional methods based on low-frequency voltage dividers in terms of higher frequencies and universality. In the future, this method will contribute to the realization of the next-generation RF power and attenuation standards based on quantum phenomena, as well as to the development of RF precision measurement technologies for applications in communications, inspection, exploration, processing, and energy transport. |