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Converter for converting rectangular waveguide into domino plasma waveguide

A technology of plasmonic waveguide and rectangular waveguide, which is applied in the direction of waveguide devices, electrical components, connecting devices, etc., can solve the problems that the efficient conversion function of rectangular waveguide cannot be realized, and achieve the effect of expanding the applicable type and scope

Inactive Publication Date: 2014-08-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem: The technical problem to be solved by the present invention is to provide a simple and symmetrical structure, compact size, easy Integrated, well-performing rectangular waveguide to domino plasmonic waveguide converters in large-scale planar or integrated circuits for efficient and broadband conversion of spatially guided waves to SSPPs

Method used

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  • Converter for converting rectangular waveguide into domino plasma waveguide
  • Converter for converting rectangular waveguide into domino plasma waveguide
  • Converter for converting rectangular waveguide into domino plasma waveguide

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Embodiment 1

[0027] Taking the X-band rectangular waveguide to domino plasmonic waveguide converter as an example, as shown in Figure 2(a), the converter consists of a symmetrical X-band rectangular waveguide on the left and right sides, a transition waveguide from the X-band rectangular waveguide to a domino plasmonic waveguide, and a constant Periodic domino plasmonic waveguides. The transitional waveguide includes a domino array with horizontal and vertical gradients. The horizontal gradient of the domino array is realized by periodic domino square columns with decreasing width, and the longitudinal gradient is realized by periodic domino square columns with increasing height; the upper wall of the transitional waveguide gradually changes according to the curve; The domino plasmonic waveguide consists of a constant-period domino array. The structural size parameters of the transitional waveguide and the domino plasmonic waveguide are adjusted according to the type and size of the rectan...

Embodiment 2

[0029] Taking the X-band rectangular waveguide shown in FIG. 2( b ) as an example, the region I is an X-band rectangular waveguide that is symmetrical on the left and right sides. Single total length l 1 = 20 mm, length A of the outer wall of the waveguide = 25.4 mm, width B = 12.7 mm, length a of the inner wall 0 = 22.86 mm, width b 0 = 10.16 mm. The rectangular waveguides at both ends of the converter can be used as input / output terminals of guided wave signals. When one of the rectangular waveguides is used as an input terminal, the other rectangular waveguide is used as an output terminal.

[0030] The symmetrical transition waveguides on the left and right sides are respectively connected to the X-band rectangular waveguides on the same side, which can efficiently convert the guided wave signals into SSPPs signals. As shown in Fig. 2(c) and Fig. 2(d), the transitional waveguide region II includes a domino array structure with lateral and vertical gradients, and its upp...

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Abstract

The invention provides a converter for converting a rectangular waveguide into a domino plasma waveguide. The converter comprises the rectangular waveguide with two symmetric ends, a transition waveguide for transition from the rectangular waveguide to the domino plasma waveguide and the middle domino plasma waveguide. The transition waveguide comprises a domino array which changes gradually in the transverse direction and the longitudinal direction, transverse gradual change of the domino array is achieved through periodic domino square columns with the width decreasing gradually, and longitudinal gradual change of the domino array is achieved through periodic domino square columns with the height increasing gradually. The upper wall of the transition waveguide changes gradually according to a curve. The domino plasma waveguide is formed by a domino array with a constant period. The converter has the advantages of being of an open symmetric structure, being small in size, large in bandwidth, high in transmission efficiency and easy to use in a large-scale panel or an integrated circuit, and the like.

Description

technical field [0001] The invention relates to a waveguide converter structure, in particular to a rectangular waveguide-to-domino plasma waveguide converter structure. Background technique [0002] Surface Plasmon Polaritons (SPPs) are a non-radiative electromagnetic mode formed by the mutual coupling of free electrons and incident photons on the metal surface. It is an electromagnetic wave that propagates locally at the interface between the metal and the medium. The free electrons on the metal surface collectively oscillate coherently under the excitation of the incident light field, and the resonant interaction between the electromagnetic field of the incident light and the surface charges generates the SPP and endows it with unique properties. SPPs can reduce the dimension of optical control from three-dimensional to two-dimensional, realize the effective regulation of super-diffraction-limited light transmission at the nanoscale, and at the same time realize the local...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/00H01P5/08
Inventor 刘亮亮李茁顾长青许秉正宁苹苹陈晨陈星宇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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