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A device for efficient excitation of antisymmetric modes based on artificial surface plasmon microcavities

An artificial surface plasmon and excitation device technology, applied in the direction of electrical components, antennas, waveguides, etc., can solve the problems of low conversion efficiency and limit the development and application of surface plasmon components, and achieve great flexibility, sub-wavelength and Enhanced field local effect and reduced overall size

Active Publication Date: 2020-05-05
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the design of surface plasmon functional devices, the efficient conversion of space waves and surface plasmon waves is a very critical technical difficulty; Development and Application of Isolation Components

Method used

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  • A device for efficient excitation of antisymmetric modes based on artificial surface plasmon microcavities
  • A device for efficient excitation of antisymmetric modes based on artificial surface plasmon microcavities
  • A device for efficient excitation of antisymmetric modes based on artificial surface plasmon microcavities

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Embodiment Construction

[0033] like figure 1 As shown, the anti-symmetrical mode excitation device of this embodiment includes a dielectric substrate 1 and a metal strip 2 with a single groove on the left side, a metal strip 3 with symmetrical grooves on both sides and a metal strip with a single side groove on the right side arranged on the dielectric substrate 1. Grooved metal strip 4, the left unilateral grooved metal strip 2, and the right unilaterally grooved metal strip 4 are arranged in a mirror image parallel to the bilateral symmetrical groove metal strip 3 along the extending direction of the bilateral symmetrical groove. On both sides of the grooved metal strip 3, this embodiment also includes a V-shaped structural unit as an embedded resonant unit.

[0034] The V-shaped structural unit of this embodiment has axial symmetry and has two independent orthogonal resonance modes, and the phase delay of scattered light can vary from 0 to 2π. When the electromagnetic wave passes through the V-sh...

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Abstract

The invention discloses an antisymmetric-mode effective motivation device based on an artificial surface plasmon microcavity. The antisymmetric-mode effective motivation device is based on a paralleldouble-line waveguiding structure, and comprises a dielectric substrate, two metal grooved stripes which cover the dielectric substrate and are arranged in parallel in a mirror symmetry manner in theextension direction, and a metal strip with symmetrical grooves in two sides, and also comprises a V-shaped structure unit serving as an embedded resonance unit; and the V-shaped structure unit is arranged between the parallel grooved metal strips.

Description

technical field [0001] The invention relates to an antisymmetric mode effective excitation device based on an artificial surface plasmon microcavity, belonging to the field of new artificial electromagnetic materials. Background technique [0002] In the surface plasmon-based transmission mechanism, the waveguide is a basic component, which can break through the optical diffraction limit to control the propagation of energy at the nanoscale. At present, a variety of surface plasmon waveguides based on different structures have been proposed, such as photonic crystal waveguides, metal waveguides, metal-insulator-metal waveguides, and metal nanowire waveguides, which can realize surface plasmons in their Efficient transmission on the surface. Two metal groove strips are mirror-symmetrical along the extension direction. When the guided electromagnetic wave is transmitted along the waveguide structure, electromagnetic energy is locally transmitted between the parallel metal gro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/00H01P3/00
Inventor 崔铁军徐俊珺傅晓建
Owner SOUTHEAST UNIV
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