Folding light path laser cooling atom device

Abstract

The invention provides a folding light path laser cooling atom device which is mainly composed of a vacuum tetrakaidecahedron, cooling light source assemblies, reflecting mirror assemblies, transfer mirror assemblies and anti-helmholtz magnetic field coils. The folding light path laser cooling atom device integrates a laser beam expansion collimation system, a folding light path, a polarization transformation system, the anti-helmholtz magnetic field coils and optical power real-time monitoring, six paths of laser required by a traditional laser cooling magneto optical trap is reduced to two paths of laser, the size and weight of an optical-mechanical system are reduced to the maximum degree, a space topology structure is simplified, and the optical-mechanical system is extremely good in mechanical property and thermal environment adaptability and can be applied to the severe environment of the space level. According to the folding light path laser cooling atom device, samples have passed ring die tests, such as a space level mechanical vibration test, a mechanical impact test, a thermal cycle test and a thermal vacuum test, long-term stable working can be kept, and the device can serve as a core optical-mechanical device of the laser cold atom application engineering.

Description

technical field [0001] The invention relates to laser cooling atoms, in particular to a laser cooling atom device with folded optical paths. Background technique [0002] Modern cold atomic physics has gradually shifted from scientific experiments to engineering applications. Laser cooling atomic technology has gone out of fixed ground laboratories and has been applied to transportable and mobile scientific research or engineering platforms, even in the aerospace field. For example, in the space cold atomic frequency standard, under the condition of space microgravity, it is necessary to use 6 beams of orthogonally directed single-frequency lasers, which will be greater than 10 6 Quantities of atoms are captured, imprisoned and cooled to ultra-low temperatures (10 －6 K level), as the working medium of the space cold atomic clock. In order to meet the launch conditions of the rocket and adapt to the harsh environment of spaceflight, the space equipment needs to be miniaturi...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of the above-mentioned existing laser cooling system, the present invention provides a folded laser cooling optical machine device

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