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Vacuum structure for miniaturizing atomic interferometer

An atomic interferometer, vacuum technology, applied in instruments, scientific instruments, measuring gravitational fields, etc., can solve problems such as deformation, and achieve the effects of small current, small heat generation, and reduced volume and weight

Active Publication Date: 2018-07-13
UNIV OF SCI & TECH OF CHINA
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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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  • Vacuum structure for miniaturizing atomic interferometer
  • Vacuum structure for miniaturizing atomic interferometer
  • Vacuum structure for miniaturizing atomic 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 present disclosure provides a vacuum apparatus for miniaturizing an atomic interferometer. The appratus includes an upper window, a lower window, a square cavity, a connecting member, an atomic source component, a three-dimensional magneto-optical trap component, an interference component, and a detecting component. Fasteners matched with the upper and lower windows are sealed with thick glasscoated with anti-reflection coating on both faces, and systematic errors caused by wavefront distortion effects can be greatly reduced. Optical windows beyond the upper and lower windows are reasonably designed and are directly embedded into a vacuum chamber in a welded manner, a reasonable atomic cooling interference solution is adopted, and the vacuum apparatus are greatly reduced in size and weight and is simple and reliable in structure. A vacuum structure is properly modified and is also suitable for applications such as cold atomic gyroscopes, gravity gradiometers and the like.

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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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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