Method for designing metamaterial refractive-index distribution and metamaterial with refractive-index distribution

A technology of refractive index distribution and metamaterials, applied in the field of artificial electromagnetic materials, can solve problems such as poor effect and complicated design methods, and achieve the effects of easy programming, wide application range, and large-scale promotion

Inactive Publication Date: 2012-07-04
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the current design methods for the refractive index distribution of metamaterials are very complicated on the one hand, and the results are not very good on the other hand.

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  • Method for designing metamaterial refractive-index distribution and metamaterial with refractive-index distribution
  • Method for designing metamaterial refractive-index distribution and metamaterial with refractive-index distribution
  • Method for designing metamaterial refractive-index distribution and metamaterial with refractive-index distribution

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Embodiment Construction

[0034] Light, as a kind of electromagnetic wave, when it passes through glass, because the wavelength of light is much larger than the size of atoms, we can use the overall parameters of the glass, such as the refractive index, rather than the detailed parameters of the atoms that make up the glass to describe The response of glass to light. Correspondingly, when studying the response of materials to other electromagnetic waves, the response of any structure in the material whose scale is much smaller than the wavelength of the electromagnetic wave to electromagnetic waves can also be described by the overall parameters of the material, such as the dielectric constant ε and magnetic permeability μ. By designing the structure of each point of the material, the dielectric constant and magnetic permeability of each point of the material are the same or different, so that the overall dielectric constant and magnetic permeability of the material are arranged in a certain order, and ...

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Abstract

The invention discloses a metamaterial, which comprises a functional layer which is formed by superposing a plurality of functional metamaterial sheet layers which have the same thickness and refractive-index distribution, wherein each functional metamaterial sheet layer comprises a base material and a plurality of artificial metal microstructures which are periodically distributed on the base material, the refractive indexes of the functional metamaterial sheet layers are concentrically distributed by taking the central points of the functional metamaterial sheet layers as circle centers, the refractive indexes at the circle centers are the largest, and the refractive indexes at the same radius parts are the same; and the refractive-index distributions on the functional metamaterial sheet layers are obtained through an initial phase method. The refractive-index distributions on the functional metamaterial sheet layers are obtained through the initial phase method, so the application range of the metamaterial is wide, the programming and coding of the metamaterial are easy to realize during the computational process, users only need to master the use of codes, and the metamaterial is convenient to be popularized in large scale.

Description

technical field [0001] The invention relates to the technical field of artificial electromagnetic materials, in particular to a metamaterial. Background technique [0002] "Metamaterial" refers to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. Through the orderly design of the structure on the key physical scale of the material, the limitation of some apparent natural laws can be broken through, so as to obtain the supernormal material function beyond the ordinary nature inherent in nature. [0003] The refractive index distribution inside the metamaterial is the key part for the metamaterial to exhibit extraordinary functions, and different refractive index distributions correspond to different functions. The more precise the refractive index profile, the better the function achieved. However, the current design method of the refractive index distribution of metamaterials is very compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/00H01Q15/02
CPCG02B1/002G02B5/00G02B27/0012
Inventor 刘若鹏季春霖岳玉涛杨青
Owner KUANG CHI INST OF ADVANCED TECH
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