Terahertz waveguide

A terahertz and waveguide technology, applied in the field of terahertz waveguides, can solve problems such as the need for mechanical support, and achieve the effects of isolation, interference avoidance, and low-loss transmission

CN110289471AActive Publication Date: 2019-09-27JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-09-27

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Abstract

The invention provides a terahertz waveguide comprising: an input end including an input-end waveguide and an input-end micro-structure waveguide which are successively connected to each other; a transmission end including a sub-wavelength waveguide, an air layer surrounding the sub-wavelength waveguide, and an outer wrapping layer surrounding the air layer, wherein one end of the sub-wavelength waveguide is connected to the other end of the fiber core of the input-end micro-structure waveguide, and one end of the outer wrapping layer is connected to the wrapping layer of the input-end micro-structure waveguide; and an output end including an output-end micro-structure waveguide and an output-end waveguide, wherein the other end of the sub-wavelength waveguide is connected to one end of the fiber core of the output-end micro-structure waveguide, the other end of the outer wrapping layer is connected to the wrapping layer of the output-end micro-structure waveguide, and the other end of the fiber core of the output-end micro-structure waveguide is connected to the other end of the output-end waveguide. The terahertz waveguide solves the problem that a conventional sub-wavelength waveguide needs mechanical support in the whole transmission direction, ensures that the two-end structure has the least influence on the transmission of the internal terahertz wave in the main transmission section, and realizes the isolation of the transmission waveguide and the environment.
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Description

technical field

[0001] The present invention relates to the field of terahertz, in particular to a terahertz waveguide. Background technique

[0002] Because terahertz waves have some characteristics incomparable to other electromagnetic bands in the electromagnetic field, such as low energy, water absorption characteristics, strong penetrability, etc., it is very important in the fields of medical imaging, chemistry, biology, communication, etc. application value. Since the terahertz signal is greatly affected by water vapor absorption and atmospheric scattering, the attenuation coefficient is so large when it is transmitted in free space that it cannot be transmitted over a long distance, so the research on terahertz waveguides is of great significance to the development of terahertz technology. Very significant.

[0003] Some researchers have proposed a sapphire fiber with a diameter of 150-325 μm, which realizes low-loss single-mode transmission of terahertz waves. On...

Examples

Embodiment Construction

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0048] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...