Semiconductor laser accelerator and laser acceleration unit thereof

Abstract

The invention relates to a semiconductor laser accelerator, which comprises a plurality of laser acceleration units connected in a cascade connection way, and a controller used for controlling excitation current supplied to each laser acceleration unit, wherein each laser acceleration unit forms an acceleration channel which extends along an X-shaft direction and comprises electrodes, a main extension plane, an active layer, a first waveguide layer, a second waveguide layer and a reflection layer; the electrodes are positioned in front of and behind a Z-shaft direction; the main extension plane is positioned between the electrodes; the active layer, the first waveguide layer, the second waveguide layer and the reflection layer are in parallel to a plane defined by an X shaft and a Y shaft;and the acceleration channel is formed in the first waveguide layer, and an optical grating is formed on at least one side of the acceleration channel to serve as an acceleration area. The semiconductor laser accelerator disclosed by the invention exhibits a higher acceleration gradient and a smaller structure, and a complex external optical system is not required. In addition, an optical field is controlled by external excitation current, the matching control of an electron beam and an optical field phase can be realized, and the problem of slide phases can be solved through cascade connection expansion.

Description

technical field [0001] The invention relates to an accelerator and its laser accelerating unit, in particular to a semiconductor laser accelerator and its laser accelerating unit. Background technique [0002] With the development of modern science and technology, human beings have a deeper and deeper understanding of the composition of matter. Exploring different levels of the material world requires different detection tools. Particle accelerators are one of the important tools for human beings to explore the microscopic world. Since the advent of the world's first particle accelerator in the 19th century, countries around the world have built more than 200 large-scale accelerator devices. the results. For example, in 2012, the top ten progresses of the year selected by the American "Science" magazine was the important achievement of using the Large Hadron Collider (LHC) to observe the Higgs particle. Although the LHC has excellent performance, it is also expensive. Its ...

AI Technical Summary

Problems solved by technology

The huge size and high construction cost limit the accelerator's application to a wider range of basic science and industry

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