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Self-guided unidirectional edge state transmission of magnetic photonic crystal tablet

A technology of magnetic photonic crystals and flat plates, applied in optics, optical components, instruments, etc., can solve the problem that unidirectionality can only work in the microwave segment

Active Publication Date: 2018-05-18
HUAIYIN TEACHERS COLLEGE
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Problems solved by technology

[0003] At present, the unidirectional self-guided wave uses the upper and lower metal covers to support the electromagnetic wave transmission of the TEM mode, and the electromagnetic wave in this system is similar to the TM mode in the two-dimensional structure, and the local area is transmitted in a plane parallel to the direction of electromagnetic wave propagation. This structure achieves unidirectionality and can only work in the microwave segment

Method used

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  • Self-guided unidirectional edge state transmission of magnetic photonic crystal tablet
  • Self-guided unidirectional edge state transmission of magnetic photonic crystal tablet
  • Self-guided unidirectional edge state transmission of magnetic photonic crystal tablet

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Embodiment Construction

[0024] This application is supported by the National Natural Science Foundation of China (61701187), the Natural Science Research Project of Universities in Jiangsu Province (16KJB510004, 15KJA460004), the Huai'an City Key Research and Development Program (Industry and Information Technology) (HAG2015039), and the Jiangsu Province 2016 College Student Practical Innovation Training Program (201610323020Z) Supported.

[0025] see Figure 1-Figure 9 As shown, the technical solution adopted in this specific embodiment is: it includes a magnetic column 1, a wave-absorbing material 2, a homogeneous dielectric material 3, an excitation probe 4, and a receiving probe 5, and a certain number of magnetic columns 1 are arranged according to a honeycomb structure. The space between the magnetic columns 1 is filled with air, and the absorbing material 2 is surrounded by the honeycomb structure of the magnetic column 1. The exciting probe 4 and the receiving probe 5 are arranged between the...

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Abstract

The invention relates to the technical field of photonic crystal and in particular relates to self-guided unidirectional edge state transmission of a magnetic photonic crystal tablet. The self-guidedunidirectional edge state transmission comprises magnetic columns, a wave absorbing material, homogeneous medium materials, an excitation probe and a receiving probe. A certain number of magnetic columns are arranged to form a honeycomb structure. Gaps among the magnetic columns are filled with air. The wave absorbing material surrounds the magnetic column honeycomb structure. The excitation probeand the receiving probe are disposed between the magnetic columns and are located at the boundary of the magnetic column honeycomb structure. The incident end face of the excitation probe is perpendicular to a connection line of the excitation probe and the receiving probe. The two above parts are fixed between two homogeneous medium materials. The above technical solution achieves completely self-guided unidirectional edge transmission by using the magnetic photonic crystal tablet.

Description

technical field [0001] The invention relates to the technical field of photonic crystals, in particular to self-guided unidirectional edge state transmission of a magnetic photonic crystal flat plate. Background technique [0002] Photonic crystals refer to artificial periodic dielectric structures with photonic bandgap properties. The concept of photonic crystals is derived from the analogy of Maxwell's equations in periodic media and Schrödinger's equations of periodic Hamilton. Now, this analogy extends to chiral edge states, the quantum Hall effect that two-dimensional electronic systems have when they are subjected to strong magnetic fields. The analogous electromagnetic unidirectional edge mode is confined to the edge of a specific two-dimensional magnetic photonic crystal, and its group velocity has only one direction. Such an edge mode was later verified experimentally in the microwave range by using a gyromagnetic photonic crystal. [0003] At present, the unidire...

Claims

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Application Information

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IPC IPC(8): G02B1/00
CPCG02B1/005
Inventor 李清波孙红兵孙慧玲周平季景
Owner HUAIYIN TEACHERS COLLEGE
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