Electric field detection method and device based on Rydberg atomic Stark effect

Abstract

The invention relates to a weak electric field detection technology, particularly relates to an electric field detection method and device based on stark effects of Rydberg atoms, and solves the technical problems that the measurement on an electric field, particularly a weak electric field, is not accurate enough at present, and the sensitivity is not high enough. The electric field detection method based on the stark effects of the Rydberg atoms comprises the following steps: (a) oppositely arranging two beams of laser and collinearly emitting the laser into a sample tank which is internally filled with alkaline metal atom steam; (b) acquiring a signal of the second beam of the laser emitted out by the sample tank and converting the signal into a corresponding electric signal; and (c) analyzing the acquired electric signal, and if the electric field exists, observing an absorption spectrum with a stark cracking phenomenon from the signal, so as to further solve the intensity of the electric field E. According to the electric field detection method and device based on the stark effects of the Rydberg atoms, the electric field can be measured by the stark effects with an alkaline metal atom Rydberg energy level; the measurement precision is high and the electric field strength which is weakened to an mV / cm grade can be measured.

Description

technical field [0001] The invention relates to weak electric field detection technology, in particular to an electric field detection method and device based on the Rydberg atomic Stark effect. Background technique [0002] As early as the last century, atoms have been widely used as measurement standards due to their reproducibility, precision and high stability. At present, atomic clocks have achieved higher than accuracy. Recently, great progress has also been made in measuring magnetic fields using atoms as a standard with an accuracy of . In many fields such as space target recognition and global positioning, the detectable space electric field is not necessarily very large, and it is necessary to realize the accurate detection of the weak electric field (mV / cm). The measurement results of the current detection devices are not accurate enough, the sensitivity is not high, and the equipment is large and difficult to carry. Contents of the invention [0003] The...

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Problems solved by technology

[0003] The present invention provides an electric field detection method and device based on the Rydberg atomic Stark effect in order to solve the current technical problems that the electric field, especially the weak electric field, is not accurate enough and the sensitivity is not high enough

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