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A vacuum device for atomic interference gravimetry

A technology of vacuum device and atomic interference, which is applied in the direction of measuring device, gravitational field measurement, geophysical measurement, etc., can solve the problem that the wavefront distortion of the window cannot be evaluated, etc., to avoid the wavefront distortion effect, reduce the weight of the device, and make the device flexible Effect

Active Publication Date: 2019-04-12
HUAZHONG UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

[0005] In view of the defects of the prior art, the purpose of the present invention is to provide a vacuum device for atomic interference gravity measurement, aiming to solve the problem that the wavefront distortion of the window under the vacuum device cannot be evaluated

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  • A vacuum device for atomic interference gravimetry
  • A vacuum device for atomic interference gravimetry

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] In order to reduce the influence of the wave front distortion effect and explore the miniaturized atomic interference gravimetric measurement scheme, the present invention provides a compact and miniaturized vacuum device suitable for atomic interference gravimetric measurement. The vacuum device suitable for atomic interference gravity measurement provided by the present invention includes two-dimensional magneto-optical trap parts, three-dimensional magneto-optical trap parts, interference parts, detection parts and optical element parts; its main features are compact structure, good stabil...

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Abstract

The invention provides a vacuum device for atomic interference gravity measurement, which comprises a two-dimensional magneto-optical trap component, a three-dimensional magneto-optical trap component, an interference component, a detection component and an optical component, wherein the two-dimensional magneto-optical trap is used for atom two-dimensional cooling; the three-dimensional magneto-optical trap component is a tetrakaidecahedron after eight vertex angles are cut from a cube for three-dimensional cooling for atoms after two-dimensional cooling and tossing cooled atoms; the interference component is a cylindrical hollow pipeline for Raman laser incidence; the interference component enables interference to happen to the atoms under mutual effects of stimulated Raman transition laser and tossed atoms; the detection component is cubic for detecting the transition probability of atoms after interference; and the optical component is used for reflecting the incident Raman laser, and together with incident laser, a stimulated Raman transition laser pair is formed. The device height is greatly reduced, the weight of the device is lessened, the device is more flexible, and the stability is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of atomic interference gravity measurement, and more specifically relates to a vacuum device for atomic interference gravity measurement. Background technique [0002] In the past two decades, atomic interferometry has been rapidly developed and widely used. Because of its potential high sensitivity and quantum properties, it has been used in the field of precision measurement to measure gravity, gravity gradient, rotation, fine structure constant, Measurements of magnetic field gradients, gravitational constants, etc. are also used to test some basic principles of physics. It has important application prospects in basic scientific research, gravity measurement, resource exploration, gravity-assisted navigation and other fields. Among them, atomic interference gravimetry is one of its most important applications, and it is also one of the most successful applications at present. [0003] The atomic interfe...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V7/02
Inventor 胡忠坤罗覃周敏康张恒陈乐乐段小春
Owner HUAZHONG UNIV OF SCI & TECH
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