High-resolution Measurement Of Microwave Electric Field Space Based On Rydberg 's Atomic Quantum Effect

Our previous approach to measuring microwave electric fields was to use impedance-loaded dipole antennas and diode detectors.This conventional detector is placed diagonally across the dipole antenna.When it is placed in an electric field,the diode rectifies the electromagnetic field and the DC voltage is recorded and the DC voltage increases or decreases as the electromagnetic field increases or decreases Variety.However,this traditional method has its own limitations,first of all the sensitivity of the detector depends on its size and needs to be calibrated;followed by metal detectors will disturb the electric field measurement;the final detector sensitivity is limited.Because of these shortcomings we seek a new way to measure the microwave electric field,which is based on the wide band of the Rydberg atomic electric field measurements.The sensor of the source of microwave electric field is produced by the Rideberg atom excited in the cesium steam pool.The specific is to use the antenna to convert the microwave electric field into an electromagnetic field,and then optically measure the electromagnetic field to obtain the microwave electric field traceability standard.Because of the interaction between the excited Rydberg atom and the RF field,and the effect of the EIT-AT effect on the Rydberg state is caused by the microwave field,we analyze the detected microwave by analyzing the detected splitting.In fact,the role of atoms in a cesium steam pool is to convert the measurement of microwave electric fields into optical frequency measurements.We measured the spatial distribution characteristics of the high-resolution millimeter-wave microwave electric field in the cesium vapor pool by measuring the ion-induced transparent spectrum of the cesium atoms under the microwave-electric field under the Autler-Townes splitting interval.We also measured the one-dimensional distribution and the two-dimensional distribution of the microwave electric field in two different geometries of the cube and the cylinder.The effect of the steam bath geometry on the microwave electric field measurement was studied experimentally.The interference effect of microwave electric field in steam pool is considered as the main reason for the uneven distribution of electric field.These studies are of great significance for accurately measuring the intensity of microwave electric field based on the Rydberg atomic quantum effect.In this paper,there are three aspect:Part 1 the nature of the Rydberg atom and the concept,characteristics and research status of the EIT-AT effect are introduced.Due to the obvious shortcomings of the traditional microwave electric field measurement technology,a new microwave electric field measurement method is proposed,which is the wide range of Rydberg atomic electric field measurement.Part 2 The basic principle of detecting the microwave electric field based on the Rydberg atom EIT-AT effect is studied briefly,and the technology of the experimental device and the experiment process is introduced in detail.Part 3 the spatial distribution characteristics of high-resolution millimeter-wave microwave electric field in the cesium vapor pool were obtained by measuring the Autler-Townes splitting interval of the electromagnetic induction transparent spectrum of cesium atoms under microwave electric field.The high-resolution measurement of the microwave spatial distribution in the cesium steam pool and the shape of the cesium steam bath The Influence of One-Dimension and Two-Dimensional Distribution on Microwave Measurement.The innovations of this work are shown by two aspects as follow:1.The measurement of the microwave electric field is converted into the optical frequency by using the atoms in the cesium vapor pool,and the high-resolution of the cesium vapor pool is obtained by measuring the ion-induced transparent spectrum of the cesium atoms under the Autler-Townes splitting interval under the microwave electric field The spatial distribution characteristics of millimeter wave microwave electric field strength.2.The effects of different geometric shapes on the strength of microwave electric field were compared.It is concluded that the interference effect in the steam pool is the main reason for the uneven distribution of the electric field.