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A broadband on-chip terahertz switch based on tunable surface plasmon mimics

A surface plasmon, terahertz technology, applied in instruments, optics, electrical components, etc., can solve the problems of rare reports and research on plasma waves, and achieve the effect of easy operation and realization, easy adjustment, and wide working bandwidth.

Active Publication Date: 2021-08-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports and studies on other control methods to control the simulated surface plasmon waves supported by the reconfigurable one-dimensional wavelength metal groove structure.

Method used

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  • A broadband on-chip terahertz switch based on tunable surface plasmon mimics
  • A broadband on-chip terahertz switch based on tunable surface plasmon mimics
  • A broadband on-chip terahertz switch based on tunable surface plasmon mimics

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] This embodiment provides a broadband on-chip terahertz switch based on tunable surface plasmon imitation, and its overall front plane structure schematic diagram is as follows figure 1 As shown, it is axisymmetrically distributed, including a first coplanar waveguide 1, a first transition structure 2, a control area 3, a second transition structure 4, a second coplanar waveguide 5, metal wires and a dielectric substrate; the first coplanar waveguide 1. The first transition structure 2, the control area 3, the second transition structure 4, and the second coplanar waveguide 5 are sequentially connected and located on the upper surface of the dielectric substrate;

[0023] The coplanar waveguides 1 and 5 are respectively the first coplanar waveguide metal cladding, the first slot, the second coplanar waveguide metal cladding, the second slot and th...

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Abstract

The invention discloses a broadband on-chip terahertz switch based on tunable imitation surface plasma, which belongs to the technical field of electromagnetic functional devices. In the present invention, the periodical nesting of vanadium dioxide with phase transition properties into a one-dimensional wavelength metal groove structure utilizes the phase transition property of a vanadium dioxide film from an insulating state to a metallic state, thereby realizing the realization of a one-dimensional wavelength metal Morphological reconstruction of grooved structures. When the shape of the one-dimensional wavelength metal groove structure changes, the dispersion of the simulated surface plasmon wave supported by its surface changes at the same time, causing the change of its cutoff frequency, and finally realizes the terahertz simulated surface plasmon wave transmitted to the surface. Control of transfer characteristics. Simulations and experiments prove that the on-chip terahertz switch has a wide operating bandwidth and a high on-off ratio, which is easy to integrate with other terahertz on-chip devices and helps to realize the miniaturization of terahertz devices.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic functional devices, in particular to a broadband on-chip terahertz switch based on tunable imitation surface plasmon. Background technique [0002] Terahertz dynamic functional devices have broad applications in many fields, such as noninvasive medical inspection, nondestructive fault analysis, security monitoring, and next-generation high-speed wireless communication networks. However, because it is difficult to generate effective electromagnetic responses in the terahertz frequency band in conventional materials in nature, the development of technology for the regulation of terahertz waves is limited. In recent years, the emergence of the concept of reconfigurable terahertz metamaterials provides an effective technical route for the realization of terahertz wave manipulation. Metamaterial refers to an artificial electromagnetic periodic array structure formed by periodically or non-peri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/10G02F1/01
CPCG02F1/0102G02F1/0121H01P1/10
Inventor 张亭张雅鑫杨梓强梁士雄
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA