Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bowknot-shaped antenna achieving waveguide mode of UWB (ultra wide band) excitation of surface plasma

A surface plasmon, ultra-broadband technology, applied in the fields of light guide, optics, instruments, etc., can solve the problems of complex manufacturing, and achieve the effect of stable excitation efficiency and unique broadband characteristics

Inactive Publication Date: 2017-06-20
UNIV OF SHANGHAI FOR SCI & TECH
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The researchers proposed to demonstrate a broadband high-efficiency excitation method using butterfly-shaped slits, however, for the multilayer structure proposed by the researchers, the fabrication is quite complicated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bowknot-shaped antenna achieving waveguide mode of UWB (ultra wide band) excitation of surface plasma
  • Bowknot-shaped antenna achieving waveguide mode of UWB (ultra wide band) excitation of surface plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] For ease of description of the application, the relevant terms involved in the application are explained as follows:

[0014] 1. Ultra-broadband: The band width at half the height of the monochromatic spectral line intensity profile emitted from the monochromator. Ultra-broadband means that the spectral range is very wide, covering most of the spectral line range.

[0015] 2. Surface plasmon: a non-radiative electromagnetic mode formed by the mutual coupling of free electrons and incident photons on the metal surface. It is a mixed excited state that propagates locally on the surface of the metal and the medium. This mode exists near the metal-dielectric interface, and its field strength reaches its maximum at the interface, and decays exponentially on both sides of the interface along the direction perpendicular to the interface. Surface plasmons have strong field confinement properties, which can confine the field energy to a region whose spatial size is much smaller ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a bowknot-shaped antenna achieving a waveguide mode of UWB (ultra wide band) excitation of surface plasma, and the antenna structure comprises a silicon dioxide bottom layer and a silver layer, which are arranged at the top and bottom. The silver layer is deposited on the surface of the low-refractive-index silicon dioxide through a magnetron sputtering machine, and is shaped like a racket, wherein the surface of the racket is rectangular, and the handle of the racket is in the shape with the equal width, thereby forming a strip-shaped waveguide. Two isosceles triangles with the opposite top points are etched through a focused ion beam, thereby forming the bowknot-shaped antenna structure. A focused Gaussian light beam irradiates the bowknot-shaped antenna structure vertically, thereby exciting the surface plasma. The method solves a problem that the surface plasma is low in excitation efficiency in the prior art, and the excitation light covers most of the visual light till the near infrared range. The antenna is unique in broadband characteristics, and will be widely used in the next generation plasma integrated chip and a function device.

Description

technical field [0001] The invention relates to an optoelectronic device, in particular to a bowtie-shaped antenna for realizing ultra-broadband excitation of surface plasmon waveguide modes. Background technique [0002] Surface plasmons are light waves coupled into nanoscale high-intensity field enhancements. The intrinsic properties of surface plasmons facilitate the optical transmission of some special nanostructure arrays. Studies have found that some arrays have higher transfer efficiencies than single wells. The optical properties of metal apertures with different geometries, such as circular, triangular, ridge or butterfly structures, have been intensively studied theoretically and experimentally. The above structure can form a strong hot spot on the sharp edge, and also has a tunable resonance peak. [0003] Compared with the dipole antenna, the bow-tie structure has multiple resonances and a strong electric field to enhance the broadband effect. Although the op...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B6/122
CPCG02B6/1226
Inventor 文静冯辉吕亚婷王康刘仕良张大伟
Owner UNIV OF SHANGHAI FOR SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com