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Transmissible and reflective dual-function terahertz wave beam splitter and method thereof

A dual-function, terahertz technology, applied in the field of terahertz wave applications, can solve the problems of non-controllability, single function, no multi-function, etc., and achieve the effect of convenient production, simple structure and meeting application requirements.

Active Publication Date: 2021-06-01
ZHEJIANG LAB +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of designing a terahertz device, once it is processed and manufactured, it cannot be changed, so it often has a single function, does not have multi-functional characteristics, and cannot be adjusted, which limits the application and development of terahertz technology.

Method used

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  • Transmissible and reflective dual-function terahertz wave beam splitter and method thereof
  • Transmissible and reflective dual-function terahertz wave beam splitter and method thereof
  • Transmissible and reflective dual-function terahertz wave beam splitter and method thereof

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Embodiment 1

[0033] In this embodiment, the structure and the shape of each component of the adjustable multi-angle terahertz beam splitter are as described above, so details are not repeated here. However, the specific parameters of each component are as follows:

[0034] Select the number of unit structures N=32, 32×32 unit structures according to figure 1 The patterns shown are arranged periodically to form a square array. The top views of the first isosceles triangular prism unit structure 6 and the second isosceles triangular prism unit structure 7 are both square, and the side length of the square is 100 μm. The cross section of the polyimide dielectric layer 4 is square, with a side length of 100 μm and a thickness of 30 μm. The vanadium dioxide layer 5 of the substrate has a square cross section with a side length of 100 μm and a thickness of 0.2 μm. The material of the all-dielectric first isosceles triangular columnar structure 2 is polyimide, the height is 180 μm, the base le...

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Abstract

The invention discloses a transmissible and reflective dual-function terahertz wave beam splitter and a method thereof. The terahertz wave beam splitter comprises a terahertz wave input end and N*N unit structures, wherein N is a natural number; the N*N unit structures are periodically arranged on a plane perpendicular to the input direction of terahertz waves, and each unit structure comprises an all-dielectric cylindrical structure, a polyimide dielectric layer and a substrate vanadium dioxide; the number of the unit structures is two, the all-dielectric cylindrical structure of one unit structure is a first isosceles triangular cylinder, the all-dielectric cylindrical structure of the other unit structure is a large isosceles triangular cylinder, middle dielectric layers of the two unit structures are both polyimide, and bottom layers of the two unit structures are both vanadium dioxide; and the bottom vanadium dioxide realizes an effect of controlling the transmission and reflection of the designed structure after reaching a phase change condition. The transmissible and reflective dual-function terahertz beam splitter is simple in structure, materials are easy to prepare, conversion of transmission and reflection can be achieved through temperature changes under the condition that the structure is not changed, and the application requirement of a terahertz wave system is met.

Description

technical field [0001] The invention relates to the technical field of terahertz wave applications, in particular to a transmissive and reversible dual-function terahertz wave beam splitter of variable materials and a method thereof. Background technique [0002] Terahertz wave refers to electromagnetic waves with a frequency of 0.1-10THz and a wavelength of 3000-30μm. It coincides with millimeter waves in the long-wave band, and coincides with infrared rays in the short-wave band. Terahertz waves occupy a very special place in the electromagnetic spectrum. s position. Therefore, terahertz technology has broad application prospects in the fields of high-speed communication and imaging. As one of the important devices for terahertz wave control, terahertz wave beam splitter has attracted extensive attention of researchers at home and abroad. In recent years, various terahertz filters, terahertz wave switches, and terahertz wave modulators have been reported. In the process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002
Inventor 李九生杨丽晶
Owner ZHEJIANG LAB
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