Integrated cold atom dual-level detection device

Abstract

An integrated cold atom dual-level detection device, which is composed of a vacuum detection area, a detection light source assembly, a heavy pump light source assembly and two fluorescence collection assemblies. The invention integrates a laser beam expansion collimation system, a fluorescence collection system, and a light Strong real-time monitoring is integrated, and the direction of the beam is controlled by a custom-made trapezoidal prism, which realizes a miniaturized, highly stable, and highly reliable integrated cold atom dual-energy level detection device, which can realize dual-energy level detection of atoms on a cold atomic clock .

Description

technical field [0001] The invention relates to a cold atomic clock laser detection technology, in particular to an integrated cold atom dual-energy level detection device. Background technique [0002] High-precision cold atomic clocks have gradually shifted from scientific experiments to engineering applications, from ground laboratories to portable experimental platforms or engineering application platforms, and even scientific experimental research and engineering application platforms in space microgravity environments. For example, in the space cold atomic frequency standard, using 6 beams of orthogonal beams of frequency-stabilized lasers 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, under the condition of space microgravity, the time interval of Ramsey interaction can be extended by using the slow ejection technology, and the sub-Hz le...

AI Technical Summary

Problems solved by technology

In order to improve the detection efficiency, it is often necessary to use a complex imaging system, and the complex imaging system often brings problems such as many lenses, difficult adjustment, poor stability and too long of the entire imaging system, which contradicts the requirement that the diameter of the shielding barrel be as small as possible

[0006] The entire detection system needs to generate three standing wave fields and one traveling wave field. The laboratory system usually adopts the design of beam splitters and multiple 45-degree mirrors, which will cause difficulties in installation and debugging and reliability problems.

At the same time, the adjustment of the standing wave field usually uses an adjustable mirror frame, but the adjustable elastic mechanical structure will bring defects in reliability and stability, and cannot pass the aerospace-level mechanical vibration, impact test and thermal ring mode test. , it cannot adapt to various harsh environments

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