Electric field detection method and device based on stark effects of Rydberg atoms

A technology of Stark effect and detection device, which is applied in electrostatic field measurement and other directions, can solve the problems of inaccurate measurement of weak electric field and low sensitivity, and achieve the effects of being conducive to carrying, high measurement accuracy and unique structure.

Active Publication Date: 2014-03-05
SHANXI UNIV
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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 c

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  • Electric field detection method and device based on stark effects of Rydberg atoms
  • Electric field detection method and device based on stark effects of Rydberg atoms
  • Electric field detection method and device based on stark effects of Rydberg atoms

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[0019] An electric field detection method based on the Rydberg atomic Stark effect, including the following steps: (a) two laser beams are opposite and collinearly incident into a sample cell filled with alkali metal atom vapor, wherein the first beam The wavelength of the laser resonates with the transition from the ground state to the first excited state of the alkali metal atom vapor in the sample cell; the wavelength of the second laser beam resonates with the transition from the first excited state to the Rydberg state of the alkali metal atom vapor; (b) Collect the signal of the second laser beam emitted by the sample cell and convert it into a corresponding electrical signal; (c) analyze the collected electrical signal. When there is no electric field at the position of the sample cell, the collected signal is the second The signal of the single-peak absorption spectrum of the laser beam; when there is an electric field at the position of the sample cell, the electric ...

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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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Application Information

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IPC IPC(8): G01R29/12
Inventor 张临杰赵建明鲍善霞贾锁堂
Owner SHANXI UNIV
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