Spherical air chamber

Abstract

A spherical air chamber relates to the technical field of atomic air chamber preparation and comprises a main spherical shell, a capillary tube and four light-passing discs, wherein, the main spherical shell is a hollow spherical structure; the capillary tube extends from the top into the main spherical shell; each light-passing disc is a flat cylindrical structure; the four light-passing discs are fixedly mounted in the sidewall of the main spherical shell; the top center of the main spherical shell is provided with a circular small hole; the capillary tube passes through the circular small hole to go into the main spherical shell; at the center of the sidewall of the main spherical shell, four circular light-passing holes are uniformly arranged; and the four light-passing discs are fixedly mounted in the four light-passing holes. The spherical air chamber provides a high-quality two-dimensional light path, and effectively alleviates the collision relaxation between atoms and the inner wall of the air chamber, thereby increasing the polarizability and the macroscopic spin relaxation time of the atomic air chamber.

Description

technical field [0001] The invention relates to the technical field of atomic gas chamber preparation, in particular to a spherical gas chamber. Background technique [0002] The atomic gas chamber is a simple device for preparing the ground state polarization state of alkali metal atoms. It stores atomic vapor in a closed space, and uses pump laser to realize the effective regulation of the quantum state of alkali metal atoms. Gas cells based on alkali metal atoms are widely used, including atomic gyroscopes, atomic magnetometers, atomic clocks, slow light, quantum storage and other fields. The preparation scheme of the atomic gas chamber, including the type and density of the alkali metal, the type and pressure of the inert gas, the shape and volume of the gas chamber shell, and other factors directly determine the accuracy of the relevant quantum instrument. [0003] Among them, for the shape of the air chamber, researchers have tried to use spherical, hemispherical, cyl...

AI Technical Summary

Problems solved by technology

However, for a spherical air chamber, due to the existence of the curvature of the inner wall of the air chamber, the propagation of the light beam in the air chamber is affected, which needs to be corrected by a lens, and stray light may be generated, which is not conducive to the true expression of the performance of the air chamber

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