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

Method for regulating free spectral range by equilong rectangular cavity surface plasma band pass filter

A band-pass filter and surface plasmon technology, applied in light guides, optics, instruments, etc., can solve problems such as the inability to adjust the free spectral range of the filter, and achieve wide-range tuning, flexible adjustment, and flexible wide-range tuning Effect

Inactive Publication Date: 2014-07-09
闫连山 +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing surface plasmon filters based on a single frequency-selective structure have advantages in some aspects, neither type of filter can flexibly adjust the free spectral range of the filter

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
  • Method for regulating free spectral range by equilong rectangular cavity surface plasma band pass filter
  • Method for regulating free spectral range by equilong rectangular cavity surface plasma band pass filter
  • Method for regulating free spectral range by equilong rectangular cavity surface plasma band pass filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] figure 1 It is a schematic structural diagram of a bandpass surface plasmon filter that realizes tunable free spectral range in the present invention, and the filter adopts a three-layer waveguide structure based on metal-insulator-metal. The structures 101 , 102 , 103 , and 104 are insulators, here air is selected, and its dielectric constant is 1. Structure 105 is a metal thin film. We choose silver as the commonly used material at present, and its frequency-dependent dielectric constant is selected as the commonly used Drude model:

[0019] ϵ m ( w ) = ϵ ∞ - ω P 2 / [ ω ( ω + iγ ...

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 discloses a method for regulating a free spectral range by an equilong rectangular cavity surface plasma band pass filter. The method comprises the steps of: changing the position of a groove (103) in a rectangular cavity (102) under the condition of unchangeable length of the rectangular cavity (102) for realizing the flexible and adjustable free spectral range; and changing the position of one peak wavelength by adopting a geometrical parameter selectivity of the groove (103) under the condition that the groove (103) is in some special positions so as to realize the flexible and adjustable free spectral range of a filter. According to the invention, on the basis of ensuring that the surface plastic filter is realized, the flexible and adjustable free spectral range of the filter is realized, and the flexibility of a photon integrated loop is enhanced.

Description

technical field [0001] The invention relates to the fields of surface plasmons, integrated photonic devices and metal waveguides. Background technique [0002] Surface plasmons have good application prospects in highly integrated photonic devices and circuits because they can overcome the traditional diffraction limit and can manipulate beams at sub-wavelength dimensions. As an important device, filter has been widely used in various optical systems. Existing surface plasmon filters can be roughly divided into two categories: filters based on periodic structures and filters based on a single frequency-selective structure. Since a filter based on a periodic structure requires multiple periods, when the number of periods N is greater than 9, the size of the periodic structure will exceed the sub-wavelength range, which is not conducive to the miniaturization and integration of photonic devices and circuits. At the same time, the filter based on the periodic structure has a l...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/293G02B6/122
Inventor 郭迎辉闫连山温坤华郭振陈智宇潘炜罗斌邹喜华张志勇
Owner 闫连山
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