Excitation and long-distance transport structures of surface waves based on metamaterials
A transmission structure and metamaterial technology, which is applied in the field of surface wave excitation and long-distance transmission structure based on metamaterials, can solve the problems of short transmission distance and inability to meet the requirements of light propagation distance of optical components, and achieve simple structure and favorable Integrated, easily coupled effects
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[0024] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0025] figure 1 is a schematic diagram of the relevant physical quantities that excite surface plasmon waves (hereinafter referred to as surface waves) on the interface between metal and medium, and the dispersion relationship of surface waves is given by the following formula:
[0026]
[0027] Where: ε 1 is the dielectric constant of the metal, ε 2 is the dielectric coefficient of the medium, β is the propagation constant of the surface plasmon wave, ω is the frequency, and c is the speed of light. figure 1 middle, is a wave vector in metal, is the wave vector in the medium, is the transverse wave vector in the metal, is the transve...
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