Optically controlled terahertz wave high-speed switching device and method thereof

Abstract

The invention discloses a light-operated Terahertz wave speed-sensitive switch device and a method thereof. The light-operated Terahertz wave speed-sensitive switch device comprises a Terahertz wave input end, a laser input end and N*N structure units, wherein N is a natural number. The N*N structure units are distributed on a plane perpendicular to the input direction of a Terahertz wave in periodic mode. Each structure unit includes a metal structure layer, a base body and a metal thin film layer, wherein the metal structure layer is connected with the base body and composed of an X-type metal member and four T-type metal members, the X-type metal member intersects at the central position of the metal structure layer in perpendicular mode, the end portions of the four T-type metal members are respectively connected with four end points of the X-type metal member, and the other side of the base body is connected with the metal thin film layer. The light-operated Terahertz wave speed-sensitive switch device is simple and compact in structure, convenient to manufacture, fast in response, convenient to adjust, and capable of meeting the application requirements in the fields of Terahertz wave imaging, medical diagnosis, environment monitoring, broadband mobile communication and the like.

Description

technical field [0001] The invention relates to the technical field of terahertz wave applications, in particular to an optically controlled terahertz wave high-speed 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 μm. 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, people have very limited understanding of the nature of electromagnetic radiation in this band, and the development of terahertz wave science and technology has been greatly restricted, so that this wave band is called electromagnetic wave. The "terahertz gap" (Terahertz Gap) in the spectrum, so that its application potential has not been realized. At present, the terahertz wave s...

AI Technical Summary

Problems solved by technology

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

[0004] Terahertz wave switch is a very important terahertz wave functional device, which has a wide range of applications in terahertz wave applications such as terahertz wave imaging, terahertz wave medical diagnosis, terahertz wave communication, and terahertz wave space astronomy. Foreground, but the existing terahertz wave switch structure is complex, difficult to manufacture, expensive, large loss, slow response

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