Quantum microwave electric field measurement technology based on enhancement electric filed resonator

Rydberg atoms based quantum microwave measurement technology has significant advantages such as self-calibration, traceability, high sensitivity and stable uniformity of measurement. In this work, from the dimension traditional electromagnetic theory, an electric field local enhancement technique for measurements is developed to improve receiver. The theoretical basis method comes different mechanisms realization reception in receivers classical Classic use antennas collect energy space signal reception; measure strength path a laser beam atomic gas chamber (the about 100 µm diameter) realize reception. Therefore, receiver can be improved by increasing beam. critical physical mechanism multi-beam interference at open end short-circuited structure. results show that with decrease gap height parallel plates, factor increases rapidly power density compression capability greatly improved. |69D<sub>5/2</sub><inline-formula><tex-math id="Z-20230113213135">\begin{document}$\rangle $\end{document}</tex-math><alternatives><graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="3-20221582_Z-20230113213135.jpg"/><graphic xlink:href="3-20221582_Z-20230113213135.png"/></alternatives></inline-formula> experiments verify structure achieve 25 dB 2.1 GHz. This research expected helpful improving on capabilities promoting practical development technology.