Theoretical and experimental study of the correlation between pulsed light repetition frequency and electric field measurement

TL;DR

This paper explores how the repetition frequency of pulsed lasers affects Rydberg atom sensor performance, demonstrating improved sensitivity and potential for better detection of weak signals in electric field measurements.

Contribution

It introduces a novel method to enhance Rydberg atom sensor sensitivity by optimizing pulsed laser repetition frequency, validated through experimental results.

Findings

Repetition frequency significantly influences Rydberg state population.

Higher repetition rates improve sensor sensitivity to external electric fields.

The method enhances detection of weak signals in specific frequency bands.

Abstract

We innovatively propose a method to improve the performance of Rydberg atom sensors based on the repetition frequency of pulsed lasers, which is verified in experiments. Rydberg atoms excited by pulsed lasers are influenced significantly by the repetition frequency of the pulsed laser on the Rydberg state population. As the number of Rydberg atoms increases, the measurement sensitivity of the sensor to external fields also increases, directly enhancing the performance of the sensor. This paper investigates the response of the sensor to the same electric field when the repetition frequency of the pulsed laser is at the MHz level, with a focus on its gain effects on the broadcast communication frequency bands of 66MHz and 88MHz. This study validates the unique advantages of pulsed light for Rydberg atom excitation, improving the effective detection of weak signals and providing a new approach for fabricating more sensitive atomic sensors.