Reflective laser multi-band focusing device

Abstract

The invention discloses a reflection type multiband laser focusing device. The reflection type multiband laser focusing device comprises a laser I, a laser II and a laser III, wherein a laser beam of the laser II sequentially passes through a focusing lens II, a refraction lens II, an axis of a convex mirror and an axis of a concave mirror and is irradiated to a sample cell, a laser beam of the laser I sequentially passes through a focusing lens I and a refraction lens I and is refracted to the sample cell through first-level refraction of the concave mirror and second-level refraction of the convex mirror, a laser beam of the laser III sequentially passes through a focusing lens III and a refraction lens III and is refracted to the sample cell through the first-level refraction of the concave mirror and the second-level refraction of the convex mirror, and the center of the sample cell is located at the focal point of the convex mirror. According to the reflection type multiband laser focusing device, light waves at different wavebands can be gathered to one point, influence of chromatic aberration is reduced, so that the laser utilization effect is improved, and experiments are assisted; a laser path is simple to construct, the adjustment is convenient, and the repeatability and the adjusting precision are high.

Description

technical field [0001] The invention belongs to a laser focusing device, in particular to a reflective laser multi-band focusing device. Background technique [0002] At present, people pay more and more attention to the great influence of atomic structure on the development of science. Using laser technology to analyze atomic structure is an important means. With the rapid development of modern laser technology, in order to study the internal structure of atoms, the atomic energy level structure has brought great convenience, and the study of laser beam combining and focusing is a key link in the study of atomic energy level structure. [0003] In the past, spatial light was often used to combine beams, which caused large beam jitter, which often affected experiments. After combining beams, it was difficult to focus through optical fibers. In addition, there is still a big problem with focusing on different bands. In order to carry out long-distance transmission, the mul...

AI Technical Summary

Problems solved by technology

Due to the relatively wide range of wavelength bands, when using lenses to focus, due to chromatic aberration, it is difficult for light waves of different wavelength bands to converge at one point, which affects the experiment.

In addition, in the previous experiment process, the coupling converged the whole process, the operation was complicated, the stability was poor, etc.

[0004] At present, the laser coupling focusing device of the prior art still has a series of problems such as complex construction of laser light path, difficult adjustment, low flexibility, poor repeatability, and low adjustment accuracy.

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