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Terahertz radiation generating device, method and device based on Smith-Push effect

A terahertz radiation and generating device technology, applied in solid-state lasers and other directions, can solve the problems of low radiation intensity and radiation efficiency, limit the radiation power and efficiency of related terahertz devices, and achieve the effect of high field intensity

Active Publication Date: 2020-04-10
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

However, the traditional Smith-Purcell radiation is incoherent, the radiation intensity and radiation efficiency are relatively low, and the radiation frequency of the traditional Smith-Purcell radiation covers a specific frequency range, it is broadband radiation, and the radiation direction is not directional, including grating directions in the upper half space, which greatly limits the radiated power and efficiency of the relevant terahertz devices

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  • Terahertz radiation generating device, method and device based on Smith-Push effect
  • Terahertz radiation generating device, method and device based on Smith-Push effect
  • Terahertz radiation generating device, method and device based on Smith-Push effect

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Embodiment Construction

[0030] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0031] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the invention. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features, steps, operations and / ...

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Abstract

The invention provides a terahertz radiation generation device, method and device based on the Smith-Push effect, and the device comprises an electronic gun and N metal gratings which are connected inseries through a metal flat conductor, and N is greater than or equal to 7; the electron gun is arranged at one ends of the N metal gratings, and the highest points of comb teeth of the N metal gratings and the metal flat conductor are located on the same horizontal plane; the electron gun is used for outputting a constant-speed electron beam, and the N metal gratings are used for generating terahertz radiation based on a Smith-Push effect. Coherent terahertz radiation with determined frequency and determined radiation direction can be obtained.

Description

technical field [0001] The invention relates to a device, method and device for generating terahertz radiation based on the Smith-Purcell effect. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency between 0.1-10THz, which is the only wave band in the electromagnetic spectrum that has not been fully developed so far. Because of its broad application prospects in many fields such as life science, material science, communication technology and national security, it has attracted widespread attention from scientists at home and abroad. Terahertz science and technology is gradually taking shape as an emerging discipline. The development of terahertz sources is the basis for the development of terahertz science and technology, and it is also the main bottleneck restricting the development of terahertz science and technology. [0003] The Smith-Purcell radiation generated based on the uniform velocity of electrons grazing the surface of t...

Claims

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Application Information

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IPC IPC(8): H01S1/02
CPCH01S1/02
Inventor 刘维浩刘予诚贾启卡
Owner UNIV OF SCI & TECH OF CHINA
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