Two-dimensional magnetic-optical trap system

A technology of magneto-optical trap and optical window, applied in the field of two-dimensional magneto-optical trap system, can solve the problems of difficult installation, low control precision and low utilization rate, and achieve the effects of compact structure, multiple functions and high utilization rate

Active Publication Date: 2014-04-02
BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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Problems solved by technology

At the same time, traditional atomic gas chambers often use high-purity alkali metals, such as pure cesium or pure rubidium, and generally control

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0030] figure 1 It is a three-dimensional block diagram of a two-dimensional magneto-optical trap system structure of the present invention. figure 2 and image 3 yes figure 1 Partial structure diagram of the two-dimensional magneto-optical trap system structure, in which figure 2 It is a three-dimensional block diagram of a ten-way vacuum chamber structure with laser collimation optical path and vacuum acquisition equipment, image 3 It is a three-dimensional block diagram of the internal structure of a tetragonal glass atomic pool. Figure 4 It is a comparison diagram of the magnetic field zero point distribution of the saddle-shaped two-dimensional magneto-optical trap and the traditional rectangular two-dimensional magneto-optical trap in the direction of atomic beam transmission. A two-dimensional magneto-optical trap system according to the present invent...

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Abstract

The invention relates to a two-dimensional magnetic-optical trap system, which belongs to the field of neutral cold atom generation technology, and is characterized in that saddle-type reversed Helmholtz coils are adopted for forming the magnetic-optical trap system. The device is compact in integral mechanical structure and easy for miniatured and engineering application; by utilizing the inherent characteristics, such as compact structure, low installing precision requirement and better radial magnetic field gradient uniformity, of the saddle-type reversed Helmholtz coils, electricity power consumption required for forming a magnetic-optical trap is reduced; through controlling atom steam pressure intensity by electrified current, continuous cold atom sources with low speed, high throughput and small divergence angle are obtained, and a better engineering application platform is provided for an atomic frequency standard, an atom interference gyroscope or other cold atom physical experiments.

Description

technical field [0001] The invention relates to a two-dimensional magneto-optical trap system, which belongs to the technical field of neutral cold atom generation, and is characterized in that a saddle-shaped anti-Helmholtz coil is used to form the magneto-optic trap system. Background technique [0002] In 1975, T.W.Hansch and A.L.Schawlow first proposed the concept of laser cooling atoms. Four years later, V.I.Balykin and V.S.Letokhov first observed the effect of laser deceleration atoms, which opened the prelude to laser cooling of neutral atoms. Since the first realization of the magneto-optical trap (MOT) in 1987, the technology of using magneto-optical traps to obtain cold atom sources has attracted more and more attention. The emergence of magneto-optical traps makes the preparation of cold atomic samples simpler and more effective. [0003] Because the cold atom sample obtained from the magneto-optical trap has many advantages such as low velocity, extremely narrow...

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Application Information

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IPC IPC(8): G21K1/00
Inventor 卢向东何哲玺王巍
Owner BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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