One-way wave guide device based on composite structures

A composite structure, one-way technology, applied in instruments, optical components, optics, etc., can solve the problems of low energy utilization efficiency of devices, high processing costs, narrow working band, etc., to achieve good one-way conduction effect, low processing cost, The effect of high processing efficiency

Inactive Publication Date: 2017-05-10
SICHUAN UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0008] (1) Traditional devices have complex structures and large volumes, making it impossible to miniaturize devices and be used in modern integrated photonic devices;
[0009] (2) The processing process of traditional devices is cumbersome and expensive;
[0010] (3) The working band of traditional devices processed by artificial electromagnetic structures is very narrow, which is not suitable for wide band requirements, and the ratio of fo

Method used

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  • One-way wave guide device based on composite structures
  • One-way wave guide device based on composite structures
  • One-way wave guide device based on composite structures

Examples

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Example Embodiment

[0026] The present invention will be further described below by way of examples.

[0027] The embodiment utilizes the great advantages of the artificial microstructure in electromagnetic wave regulation, and realizes efficient regulation of electromagnetic waves by using a composite nanostructure array of dielectric pillars and metal disks. like figure 1 , 2 As shown, the size parameters of the dielectric column and the metal disc in the embodiment are respectively dx=dy=360nm, dz=480nm, dzz=80nm, the refractive index of the dielectric column and the base is 1.59, the space medium above the metal disc is air, and the air The refractive index is taken as 1. like image 3 As shown, the composite structure is arranged according to the period value T = 600nm, and the electromagnetic wave experiments of various bands are tested, and the results are as follows Figure 4 As shown: the embodiment has good one-way transmission performance in the entire visible light range, the maxi...

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Abstract

The invention relates to the field of micro/nano optical devices, and provides a one-way wave guide device based on composite structures for realizing asymmetric transmission of optical wave. The one-way wave guide device comprises a substrate and composite structures periodically arranged on the substrate; the composite structure comprises a dielectric cylinder and a metal disk above the dielectric cylinder; and the metal disks are used for allowing electromagnetic wave to produce plasma resonance or phonon resonance. The one-way wave guide device is suitable for an integrated photonic device, and can have a very good one-way conduction effect within a very wide wave band range by adjusting the arrangement period conforming to the results.

Description

technical field [0001] The invention relates to the field of micro-nano optical devices, in particular to a unidirectional waveguide device based on a composite structure. Background technique [0002] A unidirectional waveguide device is a reciprocal optical device used for one-way transmission of electromagnetic waves, and it has important application prospects in the fields of communication, optoelectronic integration, and optical transmission. Utilizing the magneto-optical rotation effect and the birefringence effect of crystals are the two basic principles of two classic realizations of unidirectional waveguide devices based on composite structures. However, limited by the performance of magneto-optical active materials and birefringent media in nature, the unidirectional waveguide devices based on the composite structure produced by these two classic principles are relatively large in size, and the performance and waveband range of unidirectional conduction are also ve...

Claims

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Application Information

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IPC IPC(8): G02B1/00G02B5/00
CPCG02B1/005G02B5/008
Inventor 侯宜栋吴轩楠杨龙龙郑立恒李正伟阳泽建谢端高福华杜惊雷
Owner SICHUAN UNIV
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