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Planar two-waveband surface plasmon waveguide based on composite cycle structure

A surface plasmon, dual-band surface wave technology, applied in the directions of optical waveguides, light guides, optical components, etc., can solve problems such as unfavorable integration and miniaturization, and achieve the effects of simple structure, high-efficiency transmission, and strong binding ability.

Active Publication Date: 2015-07-01
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing artificial surface plasmon waveguide adopts a finite thick single-period structure, which is not conducive to integration and miniaturization

Method used

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  • Planar two-waveband surface plasmon waveguide based on composite cycle structure
  • Planar two-waveband surface plasmon waveguide based on composite cycle structure
  • Planar two-waveband surface plasmon waveguide based on composite cycle structure

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as figure 1 Shown is a planar dual-band surface plasmon waveguide based on a composite periodic structure, including a composite periodic straight metal grating structure 1 and a composite periodic arc metal grating structure 2 printed on a flexible medium and connected tangentially. A row of deep grooves A and shallow grooves B are alternately arranged on the same side of the composite periodic straight metal grating structure 1 and the composite periodic arc metal grating structure 2; the composite periodic straight metal grating structure 1 and the composite periodic arc metal grating structure One of the metal grating structures 2 is used as the input end of the waveguide, and the other is used as the output end of the waveguide. The front side of the input end is provided with a metal wire 3, and the metal wire 3 is used as a feed source to excite the ...

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Abstract

The invention discloses a planar two-waveband surface plasmon waveguide based on a composite cycle structure. The planar two-waveband surface plasmon waveguide comprises a composite cycle straight-metal grating structure and a composite cycle arc-metal grating structure, wherein the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure are printed on a flexible medium and are in tangent connection. A row of deep grooves A and a row of shallow grooves B are formed in a staggered mode in the same sides of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure. One of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an input end of the waveguide, the other one of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an output end of the waveguide, and a metallic conducting wire is arranged on the front side of the input end, serves as a feed source, and is used for exciting two-waveband surface waves on the input end. According to the planar two-waveband surface plasmon waveguide based on the composite cycle structure, a plasma straight waveguide and a bent waveguide of an ultrathin flexible thin film based on the composite cycle structure are achieved at the first time in a microwave section. The planar two-waveband surface plasmon waveguide based on the composite cycle structure has the advantages of being simple in structure, convenient to manufacture, and capable of adapting being used in the microwave section.

Description

technical field [0001] The invention relates to a waveguide structure, in particular to a planar dual-band surface plasmon waveguide based on a composite periodic structure printed on a flexible ultra-thin dielectric film with a thickness close to zero, belonging to communications, integrated circuits and surface wave technology. Background technique [0002] Artificial surface plasmons are not limited by the diffraction limit, so they can be used to construct miniaturized devices, and have important applications in surface technology and integrated circuits. The existing artificial surface plasmon waveguide adopts a finitely thick single-period structure, which is not conducive to integration and miniaturization. We exploit a facile approach to transmit dual-band surface plasmons by designing a composite periodic grating structure with alternating groove depths on an ultrathin metal surface. At the same time, by adjusting the depth of deep grooves and shallow grooves, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/122G02B6/10
Inventor 崔铁军高喜马慧锋
Owner SOUTHEAST UNIV
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