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Cylindrical microwave cavity of diffuse reflection laser cooling atom

A technology of laser cooling and microwave cavity, which is applied in the direction of instruments using atomic clocks, etc., can solve the problems of coating powder contaminating the microwave cavity wall, affecting the microwave field shape distribution, and poor reliability, so as to improve the degree of integration, simplify the structure, improve performance effect

Active Publication Date: 2014-10-08
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

These coatings will greatly affect the microwave field distribution in the cavity while reflecting light, and the coating powder will contaminate the microwave cavity wall, especially under the interference of external environments such as vibration and temperature changes, the reliability is poor

Method used

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  • Cylindrical microwave cavity of diffuse reflection laser cooling atom
  • Cylindrical microwave cavity of diffuse reflection laser cooling atom
  • Cylindrical microwave cavity of diffuse reflection laser cooling atom

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0025] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 . As shown in the figure, the present invention is used for the diffuse reflection laser cooling atom cylindrical microwave cavity of small-scale cold atomic clock, including a cylindrical base 5-2 with the same inner diameter and a cylindrical upper cover 5 processed by oxygen-free copper material -1, the contact edge of the barrel-shaped base 5-2 and the contact edge of the barrel-shaped upper cover 5-1 are connected by a plurality of screws to form a cylindrical microwave cavity, the height of the cylindrical microwave cavity and The inner diameters are equal, and the inner surface of the cylindrical microwave cavity is sandblasted and electroplated with silver. The central axis through holes 2-1, 2...

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Abstract

The invention provides a cylindrical microwave cavity of a diffuse reflection laser cooling atom, wherein the cylindrical microwave cavity is applied to a miniaturized space cold atomic clock. The cylindrical microwave cavity is formed by connecting an upper cover and a lower base through screws. The cylindrical microwave cavity is utilized to achieve the effects of the cooling atom and a microwave resonant cavity, has the advantages that a central zone of the cooling atom of a cylindrical cavity is high in cold atomic density and the cylindrical resonant cavity is high in quality factor and easy to machine, can simplify the structure of the cold atomic clock greatly, reduces the weight of the atomic clock, and improves the signal to noise ratio of clock signals and system stability.

Description

technical field [0001] The invention relates to atomic frequency standard, diffuse reflection laser cooling and microwave technology, and is a cylindrical microwave cavity used for diffuse reflection laser cooling atoms of small cold atomic clocks. Background technique [0002] The development of laser cooling atom technology provides the possibility to use cold atoms as atomic source of atomic frequency standard. Compared with hot atomic sources, cold atomic sources have the advantages of narrow central fringe line width and high quality factor of frequency discrimination curves. In recent years, cold atomic clocks have been more and more researched and applied. [0003] The atomic frequency standard system uses the ground state energy level transition of cold atoms to provide clock signals. Its core components include a cooling cavity capable of trapping atoms with laser light and a microwave resonator cavity capable of microwave action on atoms. In a high-vacuum environm...

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Application Information

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IPC IPC(8): G04F5/14
Inventor 刘鹏孟艳玲高源慈万金银王秀梅肖玲成华东刘亮
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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