High-sensitivity sensing technology of 10 MHz radio frequency electric field based on Rydberg atoms

Abstract

To address the pressing need for high-sensitivity, miniaturized electric field sensors in the short-wave communication band (3-30 MHz), this study proposes and demonstrates a radio frequency electric field quantum sensing scheme based on cesium atomic Rydberg states and the electromagnetically induced transparency (EIT) effect. The scheme employs an all-infrared optical design, utilizing 852 nm probe light, 1470 nm dressing light, and 780 nm coupling light to efficiently prepare the 49P3/2 Rydberg state in a room-temperature cesium vapor cell, which is then probed non-destructively via ladder-type four-level EIT spectroscopy.