Terahertz wave switch device and method thereof

Abstract

The invention discloses a terahertz wave switch device and a method thereof. The terahertz wave switch method comprises the following steps that: when a magnetic field device is provided with no external magnetic field, terahertz wave is input from a terahertz wave input end, vertically enters the lower bottom surface of an isosceles trapezoidal glass prism from the side surface of a short side of a rectangle on the lower bottom surface of the isosceles trapezoidal glass prism, is vertically output to a first terahertz wave output end after being reflected, and a terahertz wave detector detects the output terahertz wave; and when the magnetic field device is provided with an external magnetic field, the magnetic permeability of a magnetic film is changed, an optical path is shifted, the terahertz wave is reflected on the lower bottom surface of the isosceles trapezoidal glass prism and is vertically output to a second terahertz wave output end, and the terahertz wave detector cannot detect the output terahertz wave at this time. The terahertz wave switch device has the advantages of compact structure, high response speed, convenient adjustment and low manufacturing cost, and meetsthe requirements on the application in terahertz wave imaging, medical diagnosis, terahertz wave communication, terahertz wave space astronomy and other fields.

Description

technical field [0001] The invention relates to the technical field of terahertz wave applications, in particular to a terahertz wave switch device and a method thereof. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency of 0.1-10 THz and a wavelength of 3000-30 microns. It coincides with millimeter waves at long wavelengths and with infrared at short wavelengths. Terahertz waves occupy a very special position in the electromagnetic spectrum. Since the problem of terahertz wave source has not been well solved for a long time, the development of terahertz wave science and technology has been greatly restricted, so that its application potential has not been brought into play. At present, the terahertz wave source and detection device have been successfully developed in the world. Studies have found that terahertz waves, as a high-frequency electromagnetic wave, are safer than X-rays and are used in many fields such as medical diag...

AI Technical Summary

Problems solved by technology

There are few existing terahertz wave functional devices, usually they are complex in structure, large in size and expensive, so miniaturized and low-cost terahertz wave devices are the key to the application of terahertz wave technology

[0004] The terahertz wave switch is a very important terahertz wave device. Studies have found that the terahertz wave switch is widely used in terahertz wave applications such as terahertz wave imaging, terahertz wave medical diagnosis, terahertz wave communication, and terahertz wave space astronomy. It has broad application prospects, but the existing terahertz wave switches have complex structures, difficult fabrication, and high prices

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