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Method for manufacturing terahertz waveguide preform by means of 3D printing technology

A 3D printing and preform technology, applied in the field of terahertz waveguide preparation, can solve the problem of single production material, and achieve the effect of low cost, simple structure, and improved design dimension

Inactive Publication Date: 2016-04-20
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nurfina Yudasari of the University of Auckland and others disclosed in the article on pages 26042 to 26054 of OPTICS EXPRESS on October 20, 2014, that a terahertz terahertz sensor with twelve circular air holes surrounding the core area was produced using 3D printing technology. The waveguide, whose material is UV-cured polymer, is directly printed without the preform stage, and is only suitable for the production of terahertz waveguides with long operating wavelengths, and the air holes in the cross-sectional structure are circular air holes without acute angles , there is no change in the longitudinal structure, and the production material is single
On July 8, 2013, Shashank Pandey of the University of Utah and others disclosed the use of 3D printing technology in the article on pages 24422 to 24430 of OPTICS EXPRESS on October 21, 2013. A slab waveguide with periodic rectangular grooves 1. The manufacturing method of the y-brancher waveguide and the curved waveguide, the air holes in the cross-sectional structure of the waveguide are all circular air holes without acute angles, and the manufacturing material is single

Method used

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  • Method for manufacturing terahertz waveguide preform by means of 3D printing technology

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Embodiment 1

[0018] The terahertz waveguide prefabricated rod is manufactured by adopting the invention.

[0019] First, using AutoCAD software, follow the Figure 1.2 The design structure shown shows the cross-section of the terahertz waveguide preform, and its structure includes preform cladding 1.1, preform outer air holes 1.2, preform inner air holes 1.3, preform air core 1.4 and preform Internal regular five-pointed star structure 1.5. Among them, the preform cladding layer 1.1 and the preform internal structure 1.5 are made of cycloolefin copolymer branded as ZEONEX, and the rest is air. Among them, the diameter of the preform is 11 mm, the thickness of the preform cladding 1.1 is 0.5 mm, and the thickness of the supporting structure plate of the internal regular five-pointed star structure 1.5 is 0.3 mm. Then, save it as a lithographic format file. Furthermore, the file in the lithographic printing format was transcoded into a coordinate file of the 3D printer via the transcoding...

Embodiment 2

[0021] The terahertz waveguide prefabricated rod is manufactured by adopting the invention.

[0022] Using AutoCAD software, according to Figure 2.1 The shown structure shows the side of the terahertz waveguide preform, and its structure includes a substrate 2.1, a first-stage microring resonator 2.2, a straight waveguide 2.3, a grating structure 2.4, and a second-stage microring resonator 2.5. The first-stage microring resonator 2.2, the straight waveguide 2.3, and the second-stage microring resonator 2.5 are made of polycarbonate (PC); the grating structure 2.4 is made of metal tin. Among them, the 2.2 part of the first-stage micro-ring resonator, the major axis of the outer ring ellipse is 6 mm, the major axis of the inner ring ellipse is 4.8 mm, and the inner and outer ring ellipses are concentric; the second-stage micro-ring resonator part 2.5, the major axis of the outer ring ellipse 7.5 mm, the major axis of the inner ellipse is 6 mm, and the inner and outer ellipses ...

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Abstract

The invention provides a method for manufacturing a terahertz waveguide preform of an acute angle structure by means of a 3D printing technology. The method comprises the steps that firstly, computer cartographic software is adopted for drawing a stereo structure of the terahertz waveguide preform, then, and printing is performed by means of a 3D printer piece by piece to form the terahertz waveguide preform. The method is applicable to a majority of terahertz waveguide materials including metal or polymer and composite metamaterials thereof. Terahertz waveguide (shown in the figure) of various special-shaped cross-section structures of the acute-angle structure such as a triangle and a pentagram, the structural design freedom degree is increased, embedding of high-melting metal wires is facilitated, and the longitudinal structure of the waveguide can also be changed. The method is simple, convenient to implement and low in cost, the cross-section structures of the manufactured waveguide are abundant, the performance is excellent, and the method is applicable to large-scale industrial production and laboratory investigation, exploration and application.

Description

Technical field: [0001] The invention relates to a method for manufacturing a waveguide preform, and belongs to the technical field of terahertz waveguide preparation. It mainly involves a method for preparing a terahertz waveguide prefabricated rod by 3D printing. Background technique [0002] In recent years, the rapid development of terahertz wave source and terahertz wave signal detection technology has promoted the continuous rise of the level of terahertz wave technology system. In the absence of an effective terahertz waveguide, the terahertz wave signal in the existing terahertz wave technology system mainly relies on free space propagation, which is difficult to control and has a large loss, which greatly limits the application and promotion of the terahertz wave technology. The exploration and innovation of terahertz waveguide research has become a current research hotspot. Nurfina Yudasari of the University of Auckland and others disclosed in the article on page...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00G02B6/13B33Y80/00
CPCG02B6/13
Inventor 杨帅盛新志张明林志星孙翔
Owner BEIJING JIAOTONG UNIV
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