CN102928996A - Electronic control terahertz wave polarization beam splitter - Google Patents
Electronic control terahertz wave polarization beam splitter Download PDFInfo
- Publication number
- CN102928996A CN102928996A CN2012103856819A CN201210385681A CN102928996A CN 102928996 A CN102928996 A CN 102928996A CN 2012103856819 A CN2012103856819 A CN 2012103856819A CN 201210385681 A CN201210385681 A CN 201210385681A CN 102928996 A CN102928996 A CN 102928996A
- Authority
- CN
- China
- Prior art keywords
- transmission waveguide
- polymkeric substance
- polarization beam
- beam splitter
- thz wave
- 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.)
- Granted
Links
Images
Abstract
The invention discloses an electronic control terahertz wave polarization beam splitter. The electronic control terahertz wave polarization beam splitter comprises a terahertz wave input end, a polymer transmission waveguide, high-conductivity material layers, electrodes, a substrate and a terahertz output end, wherein the polymer transmission waveguide is formed by sequentially connecting a first polymer transmission waveguide, a second polymer transmission waveguide and a third polymer transmission waveguide, the high-conductivity material layers are symmetrically arranged on the second polymer transmission waveguide, the electrodes are symmetrically arranged at the two sides of the high-conductivity material layers, the polymer transmission waveguide is embedded into the substrate, terahertz is input along the polymer transmission waveguide from the terahertz input end, when voltage is applied to the two ends of the electrodes, transverse electric (TE) wave is output from the terahertz wave output end, and when no external voltage is applied to the two ends of the electrodes, transverse magnetic (TM) wave is output from the terahertz output end. The electronic control terahertz wave polarization beam splitter has the advantages of compact structure, small size, high beam splitting efficiency and the like, is convenient to control, and meets the requirements of fields such as terahertz non-destructive test, medical image, terahertz communication and the like.
Description
Technical field
The present invention relates to beam splitter, relate in particular to a kind of automatically controlled terahertz polarization beam splitter.
Background technology
Terahertz refers to the electromagnetic wave of frequency in 0.1THz ~ 10THz scope.The THz wave science and technology is a comprehensive very strong front subject, it relates to many important subjects such as electromagnetics, semiconductor physics, chemistry, optoelectronics, communication theory, quantum theory and material science, thereby the THz wave science and technology all has important research value and actual application value at microcosmic and macroscopical field.The THz wave science and technology has been expanded the ways and means of human research's microworld, also has broad application prospects in macroscopical fields such as biomedicine, public safety, environment measuring, chemical analysis, industrial nondestructive testing simultaneously.The THz wave science and technology has obtained the extensive concern of international academic community now, and in February, 2004, American technology comment periodical has been announced the following ten large gordian techniquies that affect the world, and the Terahertz science and technology ranks the 5th.In recent years, the research institution about THz wave emerges in multitude in the world, and has obtained a lot of achievements in research.The importance of Terahertz is based on the character of many uniquenesses of THz wave, as: 1) transient state: the typical pulse-widths of pulse is at picosecond magnitude, not only can carry out easily time-resolved research, and by sampling and measuring technology, the effectively interference of Background suppression radiation noise.2) broadband property: impulse source only comprises the electromagnetic oscillation in several cycles usually, and the frequency band of individual pulse can cover from the scope of a few GHz to tens THz.3) photon energy of low energy ripple: THz only has the milli electron-volt, compares with X ray, can not destroy because of photoionization detected material, so the THz ripple is more suitable for " live body " checked.4) high-penetrability: radiation has very strong penetrability for a lot of apolar substances such as wrappage such as dielectric substance, plastics, carton and clothes, can be used to oneself is carried out quality inspection or be used for safety inspection through the article of packing.Because with these unique character so that it survey at various ultrafast processes, physics, materialogy, biology, medical science, uranology and the information science fields such as material sign, environment measuring, object imaging, medical diagnosis, high speed photoelectronic device, wide-band mobile communication have broad application prospects.
The function element of current THz wave is the Focal point and difficult point during the THz wave science and technology is used, and the function element research for THz wave both at home and abroad also launches gradually.The common complex structure of existing THz wave function element, volume are large, actual fabrication is difficult, expensive, so miniaturization, the THz wave device is the key that the THz wave technology is used cheaply.Lot of domestic and international scientific research institution all is devoted to the research of this respect and makes some progress at present, but to the rare report of the research of terahertz polarization beam splitter.Terahertz polarization beam splitter is a kind of very important THz wave device, can be used for the THz wave communication system, realizes the control to THz wave.Therefore be necessary to design a kind of simple and compact for structure, volume is little, is convenient to integratedly, and the terahertz polarization beam splitter that beam splitting efficient is high is used needs to satisfy following THz wave technology.
Summary of the invention
The present invention is low in order to overcome prior art beam splitting efficient, complex structure, and size is large, actual fabrication process difficulty, unmanageable deficiency provides a kind of beam splitting efficient high automatically controlled terahertz polarization beam splitter.
In order to achieve the above object, technical scheme of the present invention is as follows:
Automatically controlled terahertz polarization beam splitter comprises THz wave input end, polymkeric substance transmission waveguide, high conductivity material layer, electrode, matrix, THz wave output terminal; The polymkeric substance transmission waveguide is by the first polymkeric substance transmission waveguide, the second polymkeric substance transmission waveguide and terpolymer transmission waveguide are connected in sequence, the first polymkeric substance transmission waveguide and terpolymer transmission waveguide are comprised of inner wire and outer cladding layer, the remaining part behind the subregion more than the inner wire forms the second polymkeric substance transmission waveguide in the polymkeric substance transmission waveguide by excising, high conductivity material layer symmetry is placed on the second polymkeric substance transmission waveguide, the equal in length of the length of high conductivity material layer and the second polymkeric substance transmission waveguide, symmetria bilateralis is provided with electrode on the high conductivity material layer, the polymkeric substance transmission waveguide is embedded in the matrix, THz wave is inputted from the THz wave input end along the polymkeric substance transmission waveguide, when adding voltage at the electrode two ends, the TE ripple is exported from the THz wave output terminal, when electrode two ends during without impressed voltage, the TM ripple is from the output of THz wave output terminal, and this has realized the function of automatically controlled polarization beam splitting.
Described matrix is High Resistivity Si, and length is 5000 μ m ~ 8000 μ m, and wide is 3000 μ m ~ 5000 μ m, and height is 600 μ m ~ 800 μ m.The degree of depth that described polymkeric substance transmission waveguide is embedded in the matrix is 75 μ m ~ 80 μ m, and the radius of inner wire is 20 μ m ~ 30 μ m, the radius 50 μ m of outer cladding layer ~ 80 μ m.Described high conductivity material layer length is 1500 μ m ~ 2000 μ m, and wide is 800 μ m ~ 1000 μ m, and thick is 5 μ m ~ 10 μ m; High conductivity material layer downside is 25 μ m ~ 40 μ m from the distance in the center of circle.Described electrode length is 1500 μ m ~ 2000 μ m, and wide is 100 μ m ~ 200 μ m, and thick is 20 μ m ~ 40 μ m.
That automatically controlled terahertz polarization beam splitter of the present invention has is simple and compact for structure, size is little, control is convenient, beam splitting rate advantages of higher, satisfies the demand in the fields such as Terahertz Non-Destructive Testing, medical imaging, Terahertz communication.
Description of drawings:
Fig. 1 is automatically controlled terahertz polarization beam splitter perspective view;
Fig. 2 is automatically controlled terahertz polarization beam splitter polymkeric substance transmission waveguide perspective view;
Fig. 3 is the schematic cross-section of automatically controlled terahertz polarization beam splitter;
Fig. 4 is the TE of automatically controlled terahertz polarization beam splitter output terminal output when extra electric field is arranged, the transmission curve of TM ripple;
Fig. 5 is the TM of automatically controlled terahertz polarization beam splitter output terminal output during without extra electric field, the transmission curve of TE ripple.
Embodiment
Shown in Fig. 1 ~ 3, automatically controlled terahertz polarization beam splitter comprises THz wave input end 1, polymkeric substance transmission waveguide 2, high conductivity material layer 3, electrode 4, matrix 5, THz wave output terminal 6; Polymkeric substance transmission waveguide 2 is by the first polymkeric substance transmission waveguide 7, the second polymkeric substance transmission waveguide 8 and terpolymer transmission waveguide 9 are connected in sequence, the first polymkeric substance transmission waveguide 7 and terpolymer transmission waveguide 9 are comprised of inner wire 10 and outer cladding layer 11, the remaining part behind the subregion of inner wire more than 10 forms the second polymkeric substance transmission waveguide 8 in the polymkeric substance transmission waveguide by excising, high conductivity material layer 3 symmetries are placed on the second polymkeric substance transmission waveguide 8, the equal in length of the length of high conductivity material layer 3 and the second polymkeric substance transmission waveguide 8, symmetria bilateralis is provided with electrode 4 on the high conductivity material layer 3, polymkeric substance transmission waveguide 2 is embedded in the matrix 5, THz wave is inputted from THz wave input end 1 along the polymkeric substance transmission waveguide, when adding voltage at electrode 4 two ends, the TE ripple is from 6 outputs of THz wave output terminal, when electrode 4 two ends during without impressed voltage, the TM ripple is from 6 outputs of THz wave output terminal, and this has realized the function of automatically controlled polarization beam splitting.
Described matrix 5 is High Resistivity Si, and length is 5000 μ m ~ 8000 μ m, and wide is 3000 μ m ~ 5000 μ m, and height is 600 μ m ~ 800 μ m.The degree of depth that described polymkeric substance transmission waveguide 2 is embedded in the matrix 5 is 75 μ m ~ 80 μ m, and the radius of inner wire 10 is 20 μ m ~ 30 μ m, the radius 50 μ m of outer cladding layer 11 ~ 80 μ m.Described high conductivity material layer 3 length are 1500 μ m ~ 2000 μ m, and wide is 800 μ m ~ 1000 μ m, and thick is 5 μ m ~ 10 μ m; High conductivity material layer 3 downsides are 25 μ m ~ 40 μ m from the distance in the center of circle.Described electrode 4 length are 1500 μ m ~ 2000 μ m, and wide is 100 μ m ~ 200 μ m, and thick is 20 μ m ~ 40 μ m.
Automatically controlled terahertz polarization beam splitter:
THz wave is inputted from the THz wave input end along the polymkeric substance transmission waveguide.Matrix is High Resistivity Si, and refractive index is 3.42, and matrix length is 5000 μ m, and wide is 3000 μ m, and height is 600 μ m.The degree of depth that the polymkeric substance transmission waveguide is embedded in the matrix is 75 μ m, and the radius of inner wire is 20 μ m, the radius 50 μ m of outer cladding layer.High conductivity material layer length is 2000 μ m, and wide is 1000 μ m, and thick is 5 μ m; High conductivity material layer downside is 25 μ m from the distance in the center of circle.Electrode length is 2000 μ m, and wide is 200 μ m, and thick is 20 μ m.When adding voltage at the electrode two ends, the TE ripple is exported from the THz wave output terminal, the TE of automatically controlled terahertz polarization beam splitter THz wave output terminal output, the transmission curve of TM ripple are as shown in Figure 4, in frequency is 0.30THz ~ 0.80THz scope, the minimum transfer rate of TE ripple is that the maximum transfer rate of 99.42%, TM ripple is 0.46%; When electrode two ends during without impressed voltage, the TM ripple is exported from the THz wave output terminal, the TM of automatically controlled terahertz polarization beam splitter THz wave output terminal output, the transmission curve of TE ripple are as shown in Figure 5, in frequency is 0.30THz ~ 0.80THz scope, the minimum transfer rate of TM ripple is that the maximum transfer rate of 99.34%, TE ripple is 0.54%.This explanation can realize THz wave output terminal output TE ripple or TM ripple by the control to extra electric field, has reached the purpose of automatically controlled polarization beam splitting.
Claims (5)
1. an automatically controlled terahertz polarization beam splitter is characterized in that comprising THz wave input end (1), polymkeric substance transmission waveguide (2), high conductivity material layer (3), electrode (4), matrix (5), THz wave output terminal (6); Polymkeric substance transmission waveguide (2) is by the first polymkeric substance transmission waveguide (7), the second polymkeric substance transmission waveguide (8) and terpolymer transmission waveguide (9) are formed by connecting in turn, the first polymkeric substance transmission waveguide (7) and terpolymer transmission waveguide (9) are comprised of inner wire (10) and outer cladding layer (11), the remaining part behind the subregion more than the inner wire (10) forms the second polymkeric substance transmission waveguide (8) in the polymkeric substance transmission waveguide by excising, high conductivity material layer (3) symmetry is placed on the second polymkeric substance transmission waveguide (8), the equal in length of the length of high conductivity material layer (3) and the second polymkeric substance transmission waveguide (8), the upper symmetria bilateralis of high conductivity material layer (3) is provided with electrode (4), polymkeric substance transmission waveguide (2) is embedded in the matrix (5), THz wave is inputted from THz wave input end (1) along the polymkeric substance transmission waveguide, when at electrode (4) when two ends add voltage, the TE ripple is exported from THz wave output terminal (6), when electrode (4) two ends during without impressed voltage, the TM ripple is from THz wave output terminal (6) output, and this has realized the function of automatically controlled polarization beam splitting.
2. a kind of automatically controlled terahertz polarization beam splitter according to claim 1 is characterized in that described matrix (5) is High Resistivity Si, and length is 5000 μ m ~ 8000 μ m, and wide is 3000 μ m ~ 5000 μ m, and height is 600 μ m ~ 800 μ m.
3. a kind of automatically controlled terahertz polarization beam splitter according to claim 1, it is characterized in that the degree of depth that described polymkeric substance transmission waveguide (2) is embedded in the matrix (5) is 75 μ m ~ 80 μ m, the radius of inner wire (10) is 20 μ m ~ 30 μ m, the radius 50 μ m of outer cladding layer (11) ~ 80 μ m.
4. a kind of automatically controlled terahertz polarization beam splitter according to claim 1 is characterized in that described high conductivity material layer (3) length is 1500 μ m ~ 2000 μ m, and wide is 800 μ m ~ 1000 μ m, and thick is 5 μ m ~ 10 μ m; High conductivity material layer (3) downside is 25 μ m ~ 40 μ m from the distance in the center of circle.
5. a kind of automatically controlled terahertz polarization beam splitter according to claim 1 is characterized in that described electrode (4) length is 1500 μ m ~ 2000 μ m, and wide is 100 μ m ~ 200 μ m, and thick is 20 μ m ~ 40 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385681.9A CN102928996B (en) | 2012-10-12 | 2012-10-12 | Electronic control terahertz wave polarization beam splitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385681.9A CN102928996B (en) | 2012-10-12 | 2012-10-12 | Electronic control terahertz wave polarization beam splitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102928996A true CN102928996A (en) | 2013-02-13 |
| CN102928996B CN102928996B (en) | 2015-01-14 |
Family
ID=47643832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210385681.9A Expired - Fee Related CN102928996B (en) | 2012-10-12 | 2012-10-12 | Electronic control terahertz wave polarization beam splitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102928996B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065069A (en) * | 2017-05-12 | 2017-08-18 | 深圳市太赫兹科技创新研究院 | Terahertz beam splitter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750751A (en) * | 2010-01-22 | 2010-06-23 | 中国计量学院 | Terahertz polarization beam splitter |
| CN102591041A (en) * | 2012-03-15 | 2012-07-18 | 电子科技大学 | Integrated type online electro-optic modulator with graphene thin film and D-type optical fiber |
-
2012
- 2012-10-12 CN CN201210385681.9A patent/CN102928996B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750751A (en) * | 2010-01-22 | 2010-06-23 | 中国计量学院 | Terahertz polarization beam splitter |
| CN102591041A (en) * | 2012-03-15 | 2012-07-18 | 电子科技大学 | Integrated type online electro-optic modulator with graphene thin film and D-type optical fiber |
Non-Patent Citations (2)
| Title |
|---|
| MING LIU, XIAOBO YIN, ERICK ULIN-AVILA,ET.AL.: "A graphene-based broadband optical modulator", 《NATURE》 * |
| QIAOLIANG BAO,HAN ZHANG,BING WANG,ET.AL.: "Broadband graphene polarizer", 《NATURE PHOTONICS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065069A (en) * | 2017-05-12 | 2017-08-18 | 深圳市太赫兹科技创新研究院 | Terahertz beam splitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102928996B (en) | 2015-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Elwi et al. | Hilbert metamaterial printed antenna based on organic substrates for energy harvesting | |
| Vandenbosch et al. | Upper bounds for the solar energy harvesting efficiency of nano-antennas | |
| Pogna et al. | Hot-carrier cooling in high-quality graphene is intrinsically limited by optical phonons | |
| Hung et al. | Trapped atoms in one-dimensional photonic crystals | |
| Knap et al. | Nanometer size field effect transistors for terahertz detectors | |
| Alu et al. | Boosting molecular fluorescence with a plasmonic nanolauncher | |
| Sun et al. | The all-optical modulator in dielectric-loaded waveguide with graphene-silicon heterojunction structure | |
| CN103097916A (en) | Tera-and gigahertz solid state miniature spectrometer | |
| CN105044046B (en) | A kind of THz wave organic matter detection device and method based on disk periodic structure | |
| Obraztsov et al. | Coherent detection of terahertz radiation with graphene | |
| CN102928996B (en) | Electronic control terahertz wave polarization beam splitter | |
| Rane et al. | Broadband terahertz characterization of graphene oxide films fabricated on flexible substrates | |
| CN204925441U (en) | Adjustable frequency terahertz is branching unit now | |
| CN103018829B (en) | Double-stepped terahertz wave polarization beam splitter | |
| CN203365697U (en) | Terahertz electromagnetic wave detector based on carbon nano tube-nickel heterojunction | |
| Rana et al. | Surface plasmon polariton propagation modeling for graphene parallel pair sheets using FDTD | |
| CN105372758A (en) | Bar-type terahertz wave polarization beam splitter | |
| CN202084616U (en) | Terahertz wave filter with periodical swastika-shaped hollowed-out structure | |
| Iimori et al. | Time-resolved measurement of the photoinduced change in the electrical conductivity of the organic superconductor κ-(BEDT-TTF) 2Cu [N (CN) 2] Br | |
| CN102176463B (en) | Terahertz photon on chip control system and control method thereof | |
| CN103675998B (en) | Ginseng shape terahertz polarization beam splitter | |
| CN103018831B (en) | Terahertz wave polarization beam splitter with multiple banded structures | |
| Boby et al. | Design and analysis of a serrate-shaped fractal photoconductive antenna for terahertz applications | |
| Sun et al. | A novel microwave cancellation circuit for measuring nonlinear dielectric changes of polar solution under microwave fields | |
| CN102928919B (en) | Track-shaped structure terahertz wave polarization beam splitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150114 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |