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Adjustable 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: 2021-06-01
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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  • Adjustable reflective linear polarization controller and method
  • Adjustable reflective linear polarization controller and method

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Embodiment 1

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

[0029] The front view of each unit structure 3 is a square with a side length of 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-opening ring 7 is 43 μm, the width of the ring is 5 μm, and the material is gold; the length of each opening on the double-opening ring 7 is 8 μm, and the width is 5 μm. The outer side length of the rectangular double-opening square ring 9 is 30 μm, the width of the square ring is 5 ...

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Abstract

The invention discloses an adjustable reflective linear polarization controller and a method. The controller comprises a terahertz wave input end and N*N unit structures, wherein the N is a natural number; the N*N unit structures are periodically arranged on a plane vertical to the input direction of terahertz waves, and each unit structure comprises a top-layer metal structure, a polyimide dielectric layer and a substrate metal plate; the top-layer metal structure is located above the polyimide dielectric layer, the top-layer metal structure is formed by combining a double-opening circular ring, a double-opening square ring, a rectangular metal piece and a rectangular unit, and the opening directions of the double-opening circular ring and the double-opening square ring are located in an auxiliary diagonal line; and the double-opening circular ring and the double-opening square ring are connected through a rectangular metal piece located on a main diagonal line, and a rectangular unit is embedded into an opening of the double-opening square ring, located in the center of the metal structure layer and below the polyimide dielectric layer and plated with a layer of metal plate. The adjustable reflection type linear polarization controller is simple and compact in structure, convenient to manufacture and adjust and capable of meeting the application requirement of a terahertz wave system.

Description

technical field [0001] The invention relates to the technical field of terahertz wave applications, in particular to an adjustable reflective linear polarization controller and method. 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 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 reported. But generally speaking, once the structura...

Claims

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Application Information

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IPC IPC(8): H01Q15/00
CPCH01Q15/002
Inventor 李九生程杰
Owner ZHEJIANG LAB
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