CN204116640U - The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave - Google Patents
The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave Download PDFInfo
- Publication number
- CN204116640U CN204116640U CN201420578991.7U CN201420578991U CN204116640U CN 204116640 U CN204116640 U CN 204116640U CN 201420578991 U CN201420578991 U CN 201420578991U CN 204116640 U CN204116640 U CN 204116640U
- Authority
- CN
- China
- Prior art keywords
- resonant cavity
- straight
- flanked ring
- ring resonant
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
Connect the surface plasma fluid filter of bridge based on straight-flanked ring resonant cavity and incident wave, mainly simplify the means of existing surface plasma fluid filter by the tuning vibration frequency of change structure parameter, reach with this object simplifying this kind of wave filter manufacture craft.This surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave comprises the metal level being arranged on dielectric layer both sides, single straight-flanked ring resonant cavity is set in the metal level of dielectric layer side, connect a waveguide bridge between resonant cavity and incident waveguide, waveguide bridge is arranged on the axis of symmetry of resonant cavity.This structure has extremely strong light beam and ties up effect, can break through the restriction of diffraction limit, transmit at nanoscale to light; Effectively mate with electron device and conventional photonic device and be connected, only need be long by changing waveguide bridge, just effectively can filter the light wave of different wave length.This wave filter manufacture craft is simple, has higher using value in, optical information processing integrated at optical communication, light etc.
Description
Technical field
The utility model is a kind of micronano optical device, is specifically related to a kind of surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave.
Background technology
Surface plasma fluid filter has many advantages, such as simple and compact for structure, size is little, not by the restriction of diffraction limit, provide and may wait for the compatibility of electronic loop and photonic device, at numerous areas, especially integrated, the field such as optical oomputing and optical information processing of light, has wide practical use.
The high beam connecting bridge filtering and metal-dielectric-metal waveguide based on metal nano straight-flanked ring resonant cavity and incident wave such as to tie up at the characteristic, and surface plasma fluid filter has the advantage of many uniquenesses.Generally speaking, by between appropriate design straight-flanked ring resonant cavity and incident waveguide connect the resonance wavelength that waveguide bridge length effectively can regulate straight-flanked ring resonant cavity, the light signal of different wave length is filtered in the straight-flanked ring resonant cavity that the different bridge of correspondence is long.
Surface plasma fluid filter as a kind of important accessible site photonic device, effectively solve conventional wave wave filter be subject to diffraction limit restriction and cause bulky, be difficult to the shortcomings such as integrated.Surface plasma is a kind of coherence resonance formed by external electromagnetic field and metal surface free electron, incident light energy is mainly strapped in metal surface and forward direction, it effectively can overcome diffraction limit, development for micro-nano photonic device provides new approach, but the minor alteration of metal structure of resonant cavity parameter, will cause the change that surface plasma resonance frequency is very large.A kind of simple method how is found to be the integrated and optical information processing urgent problem of current micro-nano light to control resonant cavity inside surface Plasmon resonance frequency.
Summary of the invention
The utility model provides a kind of surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave, mainly provides a kind ofly to control the method for resonant cavity inside surface Plasmon resonance frequency by changing waveguide bridge length between straight-flanked ring resonant cavity and incident waveguide.
The technical solution of the utility model is as follows: this surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave comprises the metal level being arranged on dielectric layer both sides, single straight-flanked ring resonant cavity is set in the metal level of dielectric layer side, connect a waveguide bridge between straight-flanked ring resonant cavity and incident waveguide, waveguide bridge is arranged on the axis of symmetry of straight-flanked ring resonant cavity.Straight-flanked ring resonant cavity is the ring-like nanometer resonant cavity of rectangle, and metal level is silver metal level, and straight-flanked ring resonant cavity and institute connect in waveguide bridge and be filled with air or other refraction materials.
The beneficial effects of the utility model are as follows: surface plasma fluid filter is made up of metal-insulator-metastructure structure, and this structure has extremely strong light beam and ties up effect, can break through the restriction of diffraction limit, transmit at nanoscale to light.This wave filter is integrated on the argent of a piece several microns, structure is simple, volume is little, and can and electron device and conventional photonic device effectively mate connection, the light signal of specific wavelength is filtered by changing waveguide bridge length between straight-flanked ring resonant cavity and incident waveguide, the present invention, at visible ray and near-infrared band, has wide practical use in, optical information processing integrated at optical communication, light etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that straight-flanked ring resonant cavity optimum resonant frequency is with waveguide bridge length relation figure;
Fig. 3 is by straight-flanked ring resonant cavity optimum resonant frequency conformal ring resonant cavity and met waveguide bridge medium index of refraction relationship figure;
The effective refractive index figure of Fig. 4 to be width be light in the main waveguide of 50 nanometers;
Fig. 5 is the transmission spectrum that straight-flanked ring resonant cavity and incident wave connect bridge wave filter;
Fig. 6 is the magnetic distribution figure that straight-flanked ring resonant cavity and incident wave connect light signal in bridge wave filter;
In figure: 1-metal (silver) layer; The main waveguide of 2-; 3-waveguide bridge; 4-straight-flanked ring resonant cavity.
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with accompanying drawing:
The utility model connects bridge surface plasma fluid filter based on straight-flanked ring resonant cavity and incident wave is formed primarily of metal (silver) layer, main waveguide, waveguide bridge, this few part of straight-flanked ring resonant cavity, refers to Fig. 1.Metal level (flat board) can utilize laser molecular beam crystal epitaxy system to make.Main waveguide, straight-flanked ring resonant cavity, waveguide bridge can utilize focused-ion-beam lithography technology to carry out etching to metal plate and obtain.Light signal is incorporated in main waveguide by coupling silicon waveguide or conical fiber, and light signal is incorporated into straight-flanked ring resonant cavity (different bridge is long introduces different optimum resonant frequency) by waveguide bridge, and the best being in chamber when light signal is shaken wavelength X
i(i=1,2,) time, incident light can form very strong local resonance in chamber, major part energy is stayed in chamber with standing wave form, small part energy, by main waveguide outgoing, so just can filter the light signal of specific wavelength by changing waveguide bridge length between straight-flanked ring resonant cavity and incident waveguide.Straight-flanked ring resonant cavity optimum resonance wavelength can be regulated by the waveguide bridge length changed between chamber and incident waveguide, changing waveguide bridge length can almost linear regulation straight-flanked ring resonant cavity optimum resonance wavelength, refer to Fig. 2, when waveguide bridge length changes in 50 nanometer ~ 230 nanometer range, the range of adjustment of wavelength is 800 nanometer ~ 1200 nanometers.In addition, also can effectively regulate resonant cavity resonance wavelength by the medium injecting different refractivity in resonant cavity and waveguide bridge, refer to Fig. 3, the straight-flanked ring resonant cavity of a=365nm, b=360nm, w=50nm and d
1when in the waveguide bridge of=50nm, refractive index changes between 1.0 ~ 1.30, the range of adjustment of wavelength is 800 nanometer ~ 1200 nanometers.Air is elected in main waveguide as, and its refractive index is 1.0, and width is 50 nanometers, and its effective refractive index is about 1.4 in operating wavelength range, refers to Fig. 4.Here we devise the surface plasma fluid filter that three long straight-flanked ring resonant cavities of different bridge and incident wave connect bridge, and the structural parameters a of straight-flanked ring resonant cavity, b, d are respectively a=365nm, b=360nm, d=50nm, and the waveguide bridge length that connects is set to d respectively
1=50nm, d2=80nm, d
3=110nm; The resonance wavelength of corresponding three straight-flanked ring resonant cavities is respectively λ
1=872.5nm, λ
2=887.5, λ
3=905nm.This filtration efficiency connecting the surface plasma fluid filter of bridge based on straight-flanked ring resonant cavity and incident wave, near 95%, refers to Fig. 5.The light signal of three corresponding optimum resonant frequency will form best local resonance at three straight-flanked ring resonant cavities respectively, refers to Fig. 6, and the electromagnetism field pattern of incident monochromatic light signal in wave filter meets completely with transmission results above.The distinguishing feature that this straight-flanked ring resonant cavity and incident wave connect the surface plasma fluid filter of bridge is as follows: the surface plasma fluid filter that straight-flanked ring resonant cavity and incident wave connect bridge utilizes metal-dielectric-metal waveguiding structure, the light with superelevation is bound, overcome diffraction limit, size only has several micron long; Can and electron device and conventional photonic device effectively mate connection; The light signal of specific wavelength is filtered by changing waveguide bridge length between straight-flanked ring resonant cavity and incident waveguide; The wavelength that resonant cavity filters, at visible ray and near-infrared band, has wide practical use in, optical information processing integrated at optical communication, light etc.
Claims (4)
1. one kind connects the surface plasma fluid filter of bridge based on straight-flanked ring resonant cavity and incident wave, it is characterized in that: comprise the metal level being arranged on dielectric layer both sides, single straight-flanked ring resonant cavity is set in the metal level of dielectric layer side, connect a waveguide bridge between straight-flanked ring resonant cavity and incident waveguide, waveguide bridge is arranged on the axis of symmetry of straight-flanked ring resonant cavity.
2. the surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave according to claim 1, is characterized in that: described straight-flanked ring resonant cavity is the ring-like resonant cavity of nanometer rectangle.
3. the surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave according to claim 2, is characterized in that: described metal level is silver metal level.
4. the surface plasma fluid filter connecting bridge based on straight-flanked ring resonant cavity and incident wave according to claim 3, is characterized in that: described straight-flanked ring resonant cavity and institute connect in waveguide bridge and be filled with air or other refraction materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578991.7U CN204116640U (en) | 2014-10-08 | 2014-10-08 | The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578991.7U CN204116640U (en) | 2014-10-08 | 2014-10-08 | The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116640U true CN204116640U (en) | 2015-01-21 |
Family
ID=52333936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420578991.7U Expired - Fee Related CN204116640U (en) | 2014-10-08 | 2014-10-08 | The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204116640U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267455A (en) * | 2014-10-08 | 2015-01-07 | 江南大学 | Surface plasma filter based on connection bridge of rectangular ring resonant cavity and incident waveguide |
| CN105572797A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier |
| CN105571742A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Ultra-high resolution temperature sensor based on external liquid bag and fixed wavelength |
| CN105606250A (en) * | 2016-02-15 | 2016-05-25 | 欧阳征标 | High-resolution temperature sensor based on built-in liquid capsule and fixed wavelength |
| CN105628247A (en) * | 2016-02-15 | 2016-06-01 | 欧阳征标 | Ultra-high resolution temperature sensor based on external liquid bag and spectrum valley point |
| CN105716729A (en) * | 2016-02-15 | 2016-06-29 | 欧阳征标 | High-resolution temperature sensor based on built-in liquid bag and spectrum valley point |
| CN105737975A (en) * | 2016-02-15 | 2016-07-06 | 欧阳征标 | SPP terahertz detector based on metal-insulator-metal (MIM) high sensitivity |
| CN108736118A (en) * | 2018-03-29 | 2018-11-02 | 桂林电子科技大学 | A kind of design of the unsymmetric structure cylindrical cavity filter based on surface phasmon |
-
2014
- 2014-10-08 CN CN201420578991.7U patent/CN204116640U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267455A (en) * | 2014-10-08 | 2015-01-07 | 江南大学 | Surface plasma filter based on connection bridge of rectangular ring resonant cavity and incident waveguide |
| WO2017140145A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | High-resolution temperature sensor on the basis of built-in liquid capsule and fixed wavelength |
| WO2017140147A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | Ultra high-resolution temperature sensor on the basis of external liquid capsule and fixed wavelength |
| CN105606250A (en) * | 2016-02-15 | 2016-05-25 | 欧阳征标 | High-resolution temperature sensor based on built-in liquid capsule and fixed wavelength |
| CN105628247A (en) * | 2016-02-15 | 2016-06-01 | 欧阳征标 | Ultra-high resolution temperature sensor based on external liquid bag and spectrum valley point |
| WO2017140136A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | Spp terahertz detector based on mim high sensitivity |
| CN105737975A (en) * | 2016-02-15 | 2016-07-06 | 欧阳征标 | SPP terahertz detector based on metal-insulator-metal (MIM) high sensitivity |
| CN105571742A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Ultra-high resolution temperature sensor based on external liquid bag and fixed wavelength |
| CN105572797A (en) * | 2016-02-15 | 2016-05-11 | 欧阳征标 | Terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier |
| CN105716729A (en) * | 2016-02-15 | 2016-06-29 | 欧阳征标 | High-resolution temperature sensor based on built-in liquid bag and spectrum valley point |
| WO2017140146A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | High-resolution temperature sensor based on built-in liquid capsule and spectrum valley point |
| WO2017140148A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | Ultra high-resolution temperature sensor on the basis of external liquid capsule and spectrum valley point |
| US11099060B2 (en) | 2016-02-15 | 2021-08-24 | Shenzhen University | Metal-insulator-metal high-sensitivity surface plasmon polariton terahertz wave detector |
| CN105737975B (en) * | 2016-02-15 | 2021-04-30 | 欧阳征标 | MIM-based high-sensitivity SPP terahertz detector |
| CN105572797B (en) * | 2016-02-15 | 2021-02-26 | 欧阳征标 | Terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier |
| CN108736118B (en) * | 2018-03-29 | 2020-04-21 | 桂林电子科技大学 | Design of asymmetric structure circular cavity filter based on surface plasmon |
| CN108736118A (en) * | 2018-03-29 | 2018-11-02 | 桂林电子科技大学 | A kind of design of the unsymmetric structure cylindrical cavity filter based on surface phasmon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204116640U (en) | The surface plasma fluid filter of bridge is connected based on straight-flanked ring resonant cavity and incident wave | |
| CN104267455A (en) | Surface plasma filter based on connection bridge of rectangular ring resonant cavity and incident waveguide | |
| CN206531997U (en) | Micro-ring resonator filter and optical signal processing system | |
| CN103048735B (en) | Surface plasma wavelength division demultiplexer based on destructive interference | |
| CN105572796B (en) | A kind of path filter up and down based on antisymmetry multimode Bragg waveguide grating | |
| CN106842634B (en) | Automatically controlled tunable optic filter and preparation method based on three-dimensional micro-ring resonant cavity | |
| WO2010040303A1 (en) | Surface-plasmon-polaritons tunable optical resonant ring filter | |
| CN108693602A (en) | A kind of three-dimensionally integrated more microcavity resonator, filter devices of silicon nitride and preparation method thereof | |
| CN106980155B (en) | A kind of compact photon structure for realizing a variety of resonance line styles based on micro-loop chamber | |
| CN110941109A (en) | Silicon-based integrated optical isolator based on topology protection mechanism | |
| CN105137539A (en) | Ultra-wideband photodiode based on photonic crystal | |
| CN108493527A (en) | One kind embedding rectangular cavity plasma wave-filter based on MIM waveguides | |
| CN209117912U (en) | A kind of silicon optical waveguide end coupling device | |
| CN102928912A (en) | Metal-medium coupling resonance cavity for generating Vaino resonance phenomenon | |
| CN208283698U (en) | A kind of optical logic device of the more bit inputs of micro-cavity structure | |
| CN208569082U (en) | A kind of mixing phasmon waveguide bragg grating Polarization filter | |
| CN108181672B (en) | Hybrid plasmon waveguide Bragg grating | |
| CN106680933B (en) | A kind of asymmetrical areflexia period waveguide microcavity bandpass filter of transverse direction | |
| CN110890612B (en) | MIM tunable plasma filter with embedded fan-shaped metal resonant cavity | |
| CN105607190A (en) | De-multiplexing apparatus based on add-drop type three-waveguide coupling double square resonant cavities | |
| CN101833138B (en) | Method for manufacturing polarization-independent grating coupler | |
| CN104714274A (en) | Surface plasmon orientation exciter based on sub-wavelength slit structure | |
| CN204422811U (en) | Based on the directed energizer of sub-wavelength slit body structure surface plasma | |
| CN102768837A (en) | Optical fibre online storage based on rainbow local effect | |
| CN102914819A (en) | One-dimensional photonic crystal optical micro-cavity based on waveguide comprising low-refractive-index cores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |