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A Vacuum Structure Suitable for Miniaturized Atom Interferometer

A technology of atomic interferometer and atomic interference, which is applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve problems such as deformation, and achieve the effects of small current, small calorific value, and flexible structure

Active Publication Date: 2020-06-26
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a thin quartz glass, even if its flatness is high, will cause deformation during crimping

Method used

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  • A Vacuum Structure Suitable for Miniaturized Atom Interferometer
  • A Vacuum Structure Suitable for Miniaturized Atom Interferometer
  • A Vacuum Structure Suitable for Miniaturized Atom Interferometer

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are well known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints.

[0045] An embodiment of the present disclosure provides a vacuum device for a miniaturized atom interferometer. Such as Figure 4 As shown, the vacuum dev...

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Abstract

The disclosure provides a vacuum device for a miniaturized atomic interferometer, which includes upper and lower windows, a square cavity, a connection part, an atom source part, a three-dimensional magneto-optical trap part, an interference part and a detection part. The upper and lower windows and the fasteners are sealed with thick glass coated with anti-reflection film on both sides, which can greatly reduce the system error caused by the wavefront distortion effect. Through the reasonable design of the optical windows other than the upper and lower windows and direct embedded welding into the vacuum cavity, and the adoption of a reasonable atomic cooling interference scheme, the volume and weight of the vacuum device are greatly reduced, and the structure becomes simple. reliable. At the same time, the vacuum structure is also suitable for applications such as cold atom gyroscopes and gravity gradiometers after appropriate modification.

Description

technical field [0001] The disclosure belongs to the field of absolute gravitational acceleration measurement in quantum precision measurement, and in particular relates to a vacuum structure suitable for a miniaturized atomic interferometer. Background technique [0002] The atomic interferometric gravimeter is the key development direction of quantum precision measurement, with potential high sensitivity and resolution, and has extremely important value in many fields such as gravity calibration, resource exploration, inertial navigation, and geophysical research. How to realize high-precision transportable atom interferometer is an important research direction at present. [0003] The process of atomic interferometer to measure gravity includes three-dimensional cooling and trapping, initial state preparation, Raman interference and final state detection. [0004] In one of the processes of three-dimensional cooling and trapping, it needs to be carried out under a specif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V7/02
CPCG01V7/02
Inventor 陈帅龙金宝谢宏泰杨胜军潘建伟
Owner UNIV OF SCI & TECH OF CHINA
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