High double-refraction elliptical porous terahertz waveguide and preparation method thereof

A high birefringence, terahertz technology, used in the field of terahertz polarization sensing, can solve the problems of fixed birefringence, specific application limitations, and difficult preparation, and achieve adjustable birefringence, reduce transmission loss, and reduce birefringence. high effect

Inactive Publication Date: 2010-01-20
CHINA JILIANG UNIV
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  • Abstract
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Problems solved by technology

However, the research on birefringent terahertz waveguides is still insufficient, and only a few research results have been reported. However, they are of great value for polarization terahertz transmission, filtering, sensing, etc., and are worthy of attention
In 2008, S. Atakaramians and their collaborators proposed a method to introduce a rectangular hole into a porous ...

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  • High double-refraction elliptical porous terahertz waveguide and preparation method thereof
  • High double-refraction elliptical porous terahertz waveguide and preparation method thereof
  • High double-refraction elliptical porous terahertz waveguide and preparation method thereof

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Embodiment Construction

[0022] figure 1 and figure 2 The structural changes before and after extrusion of the elliptical porous terahertz waveguide of the present invention are shown. Such as figure 1 As shown, the cross-sections of the outer boundary 1 and the air hole 2 of the elliptical porous terahertz waveguide of the present invention are circular before extrusion. by right figure 1 The shown circular porous terahertz waveguide is obtained by lateral extrusion figure 2 The shown porous terahertz waveguide of the present invention has an array of elliptical air holes 4 distributed on the cross section of the waveguide. The elliptical air hole 4 can make the terahertz waveguide have high birefringence and low transmission loss. The outer boundary 3 of the cross section of the terahertz waveguide of the present invention can be as follows figure 2 Shown in oval shape.

[0023] The preparation method of the elliptical porous terahertz waveguide of the present invention is as follows: firs...

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Abstract

The invention discloses a high double-refraction elliptical porous terahertz waveguide which is mainly used for the fields of maintaining single polarization transmission and sensing terahertz polarization of a terahertz wave. In order to overcome the defects of difficult waveguide preparation and fixed and unadjustable double-refraction coefficient in the prior art, an elliptical air hole array is allotted on the cross section of the high double-refraction elliptical porous terahertz waveguide; and furthermore, the external boundary of the cross section of the waveguide is also in an ellipse. The invention has the advantages of low transmission consumption, high and adjustable double-refraction coefficient, low preparation cost and easy utilization.

Description

technical field [0001] The invention relates to a porous waveguide fiber for transmitting terahertz waves, which is mainly used in the single polarization maintaining transmission of terahertz waves and the field of terahertz polarization sensing. Background technique [0002] Due to its great application value in sensing, communication, security inspection, national defense, materials, biology, medicine and other fields, terahertz technology has become a hot research field that researchers from all over the world are generally concerned about. Terahertz waveguides are of great value for the miniaturization and flexibility of terahertz systems. Since almost all materials have strong absorption of terahertz radiation, a large part of the work has focused on low-loss terahertz waveguides. For example, metal microwire waveguides, sub-wavelength plastic waveguides, and hollow photonic crystal waveguides can all reduce losses to a certain extent. Recently, several polymer porou...

Claims

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Application Information

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IPC IPC(8): G02B6/10
Inventor 洪治陈海滨
Owner CHINA JILIANG UNIV
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