Optical beam-expanding collimation system
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
- Publication Date
- 2010-08-18
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to magneto-optical traps, optical traps and other structural cold atomic physics experiment systems, in particular to a system for obtaining a large number of stable cold atomic groups with magneto-optical traps, optical traps and other lasers and real-time monitoring of laser intensity and stability. Sexual optical beam expander collimation system. Background technique
[0002] In cold atomic physics, especially in cold atomic frequency standards, it is usually necessary to capture, imprison and cool down a large number of atoms for related physics in order to obtain longer action time, more stable and accurate experimental data. Cold atomic physics involves atomic fineness and energy levels, and the geomagnetic field will cause atomic energy levels to change.
[0003] According to the theory of laser cooling, common methods of laser cooling atoms are divided into linear ⊥ linear polarization gradient cooling and σ accor...