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Tunable reflective linear polarization controller and method

A linear polarization and controller technology, applied in the field of terahertz wave applications, can solve the problems of non-controllability and limit the application and development of terahertz technology, and achieve the effects of convenient production, simple and compact structure, and convenient adjustment.

Active Publication Date: 2022-06-17
ZHEJIANG LAB +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But generally speaking, once the structural size parameters of these terahertz devices are optimized, the device performance is fixed and cannot be adjusted, which seriously limits the application and development of terahertz technology. Therefore, it is very important to design an adjustable reflective linear polarization controller. significance

Method used

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  • Tunable reflective linear polarization controller and method
  • Tunable reflective linear polarization controller and method
  • Tunable reflective linear polarization controller and method

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Embodiment 1

[0028] In this embodiment, the structure of the tunable reflective linear polarization controller and the shape of each component are as described above, and thus will not be repeated here. However, the specific parameters of each component are as follows:

[0029] The front view of each unit structure 3 is a square, and the side length of the square is 100 μm. The length and width of the polyimide layer 4 are both 100 μm, and the thickness is 35 μm. The material of the base metal plate 5 is gold, the length and width are both 100 μm, and the thickness is 0.4 μm. The material of the top metal structure 2 is gold, the length and width are both 100 μm, and the thickness is 0.4 μm. The inner radius of the double-slit ring 7 is 43 μm, the width of the ring is 5 μm, and the material is gold; each opening on the double-slit ring 7 is 8 μm in length and 5 μm in width. The outer side length of the rectangular double split square ring 9 is 30 μm, the width of the square ring is 5 μm...

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Abstract

The invention discloses an adjustable reflective linear polarization controller and a method. It includes a terahertz wave input terminal, N×N unit structures, N is a natural number; N×N unit structures are periodically arranged on a plane perpendicular to the input direction of the terahertz wave, and the unit structure includes a top metal structure, a polyimide dielectric layer, substrate metal plate; wherein, the top metal structure is located above the polyimide dielectric layer, and the top metal structure is composed of a double-opening ring, a double-opening square ring, a rectangular metal piece and a rectangular unit, and the double-opening The opening direction of the circular ring and the double-opening square ring is located on the secondary diagonal, and the double-opening circular ring and the double-opening square ring are connected by a rectangular metal piece located on the main diagonal. The rectangular unit is embedded in the opening of the double-opening square ring, located at The center of the metal structure layer is coated with a metal plate under the polyimide dielectric layer. The adjustable reflective linear polarization controller of the present invention has the advantages of simple and compact structure, convenient manufacture and convenient adjustment, and meets the application requirements of the terahertz wave system.

Description

technical field [0001] The invention relates to the technical field of terahertz wave application, in particular to an adjustable reflection type linear polarization controller and method. Background technique [0002] Terahertz waves refer to electromagnetic waves with frequencies in the range of 0.1-10THz and wavelengths in the range of 3000-30μm. It overlaps with millimeter waves in the long wavelength band, and overlaps with infrared rays in the short wavelength band. Terahertz waves occupy a very special place in the electromagnetic spectrum. s position. Therefore, terahertz technology has broad application prospects in high-speed communication, imaging and other fields. As one of the important devices for terahertz wave control, the terahertz wave linear polarization controller 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 developed. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00
CPCH01Q15/002
Inventor 李九生程杰
Owner ZHEJIANG LAB
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