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Plasmon active waveguide device and method of controlling propagation of plasmons

A plasmon and source wave technology, applied in waveguide devices, waveguides, electrical components, etc., can solve the problem of propagation loss limiting the application of plasmon photonics

Inactive Publication Date: 2016-05-04
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The propagation loss of electromagnetic waves in metals limits the application of plasmonic photonics in sensing, integrated optical circuits, etc.

Method used

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  • Plasmon active waveguide device and method of controlling propagation of plasmons
  • Plasmon active waveguide device and method of controlling propagation of plasmons

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Embodiment Construction

[0021] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0022]

[0023] The invention provides an active waveguide device that can effectively reduce the attenuation of plasmon propagation and even generate gain under certain conditions. specifically, figure 1 A cross-sectional structure diagram of a plasmonic active waveguide device according to a preferred embodiment of the present invention is schematically shown.

[0024] Such as figure 1 As shown, the plasmonic active waveguide device according to the preferred embodiment of the present invention includes: a metal-semiconductor-metal parallel plate waveguide structure, wherein the metal-semiconductor-metal parallel plate waveguide structure includes a The metal layers M1 and M2 on both sides of the excimer transverse magnetic mode and the se...

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Abstract

The invention provides a plasmon active waveguide device and a method of controlling propagation of plasmons. The plasmon active waveguide device comprises a metal- semiconductor-metal parallel plate waveguide structure, wherein the metal-semiconductor-metal parallel plate waveguide structure comprises metal layers at two sides for limiting the transverse magnetic mode of the plasmons and a semiconductor layer located between the metal layers at two sides as a gain material; and the metal layers at two sides are connected with an electrode respectively.

Description

technical field [0001] The invention relates to the application field of surface plasmon photonics, more specifically, the invention relates to a plasmon active waveguide device and a method for controlling plasmon propagation. Background technique [0002] The surface plasmon is a kind of propagating excitons formed by the combination of the charge concentration wave and the electromagnetic mode of the conductor surface originating from the collective oscillation of free electrons. Like traditional dielectric fibers, the broad-spectrum continuous mode of surface plasmons is confined to the metal wire and propagates along the axis of the wire; but the difference is that the surface plasmon mode localized in the cross-section of the wire The size of the scale is equivalent to the diameter of the wire, which means that the surface plasmon can break through the diffraction limit, and can realize the localization and control of the light field below 100 nanometers. However, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/02
CPCH01P3/02
Inventor 佘敏敏钟旭黄军伟宋赣祥
Owner SHANGHAI DIANJI UNIV