Metamaterial imaging system
An imaging system and metamaterial technology, applied in the field of metamaterial imaging systems, can solve the problems of easy aging of media, high cost, inflexible design of convex lens, etc., and achieve the effect of low cost, small size and easy realization
Active Publication Date: 2012-09-19
KUANG CHI INST OF ADVANCED TECH +1
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a simple, easy-to-implement and low-cost metamaterial imaging system for the defects of the prior art, such as inflexible design, high cost, and easy aging of the medium, which realize the convergence of electromagnetic waves.
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[0020] In order to describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following is a detailed description in conjunction with the embodiments and accompanying drawings.
[0021] "Metamaterials" refer to artificial composite structures or composite materials with extraordinary physical properties that natural materials do not possess. Through the orderly design of the structure on the key physical scale of the material, it is possible to break through the limitations of certain apparent natural laws, thereby obtaining the supernormal material functions beyond the ordinary properties inherent in nature. Three important characteristics of "metamaterials":
[0022] (1) "Metamaterials" are usually composite materials with novel artificial structures;
[0023] (2) "Metamaterials" have extraordinary physical properties (often not found in natural materials);
[0024] (3) The properties of "metamaterials" are often not...
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The invention discloses a metamaterial imaging system. The metamaterial imaging system comprises a first metamaterial lens, an area to be imaged and a second metamaterial lens in sequence from an emission source to a receiving antenna, wherein the first metamaterial lens and the second metamaterial lens have a section respectively, the product of an equivalent dielectric constant epsilon and equivalent magnetic conductivity mu of each unit in the middle of the section is the maximum value, the values of the products of equivalent dielectric constants epsilon and equivalent magnetic conductivity mu of other units are in a gradual increase trend and approach to the unit with the maximum value, electromagnetic waves emitted by the emission source are converged by the first metamaterial lens and then input into the area to be imaged, the converged electromagnetic waves are scattered into the second metamaterial lens by the area to be imaged, and the scattered electromagnetic waves are converged by the second metamaterial lens and then output to the receiving antenna for imaging. The metamaterial imaging system is small in volume, simple, easy to realize and low in cost.
Description
Technical field [0001] The invention relates to the field of optics, and more specifically, to a metamaterial imaging system. Background technique [0002] At present, for converging electromagnetic wave imaging, convex lens is used. In optics, using convex lens to converge electromagnetic waves can make the object image on the other side of the convex lens. We know that the object is placed outside the focus of the convex lens and formed on the other side of the convex lens. The inverted real image can be reduced, equalized, and enlarged. The smaller the object distance, the larger the image distance and the larger the real image. The object is placed in the focal point of the convex lens and an upright magnified virtual image is formed on the same side of the convex lens. The smaller the object distance, the smaller the image distance, and the smaller the virtual image. [0003] Convergence of electromagnetic waves by the convex lens is achieved by the refraction of the spheri...
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Inventor 刘若鹏石小红徐冠雄张洋洋
Owner KUANG CHI INST OF ADVANCED TECH