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Metamaterial-based electromagnetic wave asymmetric transmission controller

An asymmetric transmission and electromagnetic wave technology, applied in the direction of electrical components, antennas, etc., can solve problems such as inability to control electromagnetic wave transmission, and achieve good asymmetric transmission effects, easy preparation, and simple structure

Active Publication Date: 2018-09-07
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing electromagnetic wave transmission controllers cannot effectively control the transmission direction of electromagnetic waves, especially terahertz waves.

Method used

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  • Metamaterial-based electromagnetic wave asymmetric transmission controller
  • Metamaterial-based electromagnetic wave asymmetric transmission controller
  • Metamaterial-based electromagnetic wave asymmetric transmission controller

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Embodiment 1

[0035] combine figure 1 , the metamaterial-based electromagnetic wave asymmetric transmission controller provided in this embodiment includes a dielectric layer 1, a first electromagnetic material layer 2 and a second electromagnetic material layer 3;

[0036] combine figure 2 , the structure of the first electromagnetic material layer 2 is the same as that of the second electromagnetic material layer 3, such as image 3 As shown, the first electromagnetic material layer 2 is plated on the first surface of the dielectric layer 1; as Figure 4 As shown, the second electromagnetic material layer 3 takes the center of the second electromagnetic material layer 3 as the center of rotation, rotates 90 degrees counterclockwise around the parallel line of the z-axis, and then rotates 180 degrees clockwise around the parallel line of the x-axis, and then is plated on The second surface of the dielectric layer 1, wherein the plane where the dielectric layer 1 is located is parallel t...

Embodiment 2

[0050] In this embodiment, when the size of the basic unit 4 is suitable for controlling the transmission of terahertz waves, the working principle of the electromagnetic wave asymmetric transmission controller based on metamaterials is described as follows.

[0051] Such as Figure 7 As shown, an xyz coordinate axis is set as a working platform for the electromagnetic wave asymmetric transmission controller, and the z axis is perpendicular to the surface of the electromagnetic wave asymmetric transmission controller. Such as Figure 7 As shown, after the linearly polarized light 6 polarized in the x direction is vertically incident on the surface of the above-mentioned electromagnetic wave asymmetric transmission controller along the -z direction, the cross-polarized output light is 7; let the linearly polarized light 6 polarized in the x direction be incident vertically along the +z direction After reaching the surface of the above-mentioned electromagnetic wave asymmetric ...

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Abstract

The invention provides a metamaterial-based electromagnetic wave asymmetric transmission controller, comprising: a dielectric layer, a first electromagnetic material layer and a second electromagneticmaterial layer, wherein the first electromagnetic material layer and the second electromagnetic material layer have the same structure, the first surface of the dielectric layer is plated with the first electromagnetic material layer; the second electromagnetic material layer, by using the center of the second electromagnetic material layer as a center of rotation, counterclockwise rotates arounda z-axis parallel line by 90 degrees and then clockwise rotates around an x-axis parallel line by 180 degrees, and then is plated on the second surface of the dielectric layer; the first electromagnetic material layer includes N*N basic units periodically arranged; each basic unit is composed of an L-shaped line and an asymmetric U-shaped line which have the same line width; the thickness of thedielectric layer is on the order of micrometers, and the thickness of the electromagnetic material layer is on the order of nanometers. The metamaterial-based electromagnetic wave asymmetric transmission controller provided by the invention can realize effective asymmetric transmission control for terahertz waves.

Description

technical field [0001] The invention relates to the field of electromagnetic wave transmission control, in particular to an electromagnetic wave asymmetric transmission controller based on metamaterials. Background technique [0002] Terahertz waves usually refer to electromagnetic waves with a frequency in the range of 0.1-10THz, whose wave band is between millimeter waves and infrared waves, and occupies an important position in the electromagnetic spectrum. Terahertz waves have many superior characteristics, and have important research value and application prospects in basic disciplines such as physics and life sciences, as well as applied disciplines such as security detection, medical imaging and communication technology. At present, due to the weak interaction between most conventional natural materials and terahertz waves, there is no significant electromagnetic response, resulting in the lack of terahertz devices and materials, which greatly limits the research and ...

Claims

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Application Information

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IPC IPC(8): H01Q15/00
CPCH01Q15/0086
Inventor 吕婷婷刘东明刘超
Owner NORTHEAST GASOLINEEUM UNIV
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