CN106602184A - Terahertz wave tunable filter based on graphene periodic slot - Google Patents
Terahertz wave tunable filter based on graphene periodic slot Download PDFInfo
- Publication number
- CN106602184A CN106602184A CN201611206617.4A CN201611206617A CN106602184A CN 106602184 A CN106602184 A CN 106602184A CN 201611206617 A CN201611206617 A CN 201611206617A CN 106602184 A CN106602184 A CN 106602184A
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- graphene
- cycle
- fluting
- rectangular slot
- tunable filter
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 49
- 230000000737 periodic effect Effects 0.000 title abstract 6
- 238000010276 construction Methods 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000000701 chemical imaging Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/2002—Dielectric waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a terahertz wave tunable filter based on a graphene periodic slot. The terahertz tunable filter comprises a signal input end, a signal output end, a periodic slot structure graphene layer, and a medium plate. The periodic slot structure graphene layer is laid on the medium plate. Eight combined slot structure units in 2*4 equidistance arrangement are etched on the periodic slot structure graphene layer. Each of the combined slot structure units comprises a left rectangular slot, a rectangular slot, a right rectangle slot, a U-shaped slot, and an inverted U-shaped slot. A terahertz wave is inputted from a signal input end to orderly pass the periodic slot structure graphene layer and the medium plate, a terahertz wave of specific frequency can be output from a signal output terminal, and the filtering function is realized. When the dielectric constant of graphene is changed by an external electric field, the dielectric constant of the graphene is different, a corresponding output terahertz frequency is different, and thus the adjustable filtering function is realized. The terahertz wave tunable filter has the advantages of a simple structure, high filtering performance, a small size, low cost, easy integration and the like.
Description
Technical field
The present invention relates to THz wave wave filter, more particularly to it is a kind of based on the adjustable filter of Graphene cycle fluting THz wave
Ripple device.
Background technology
In recent years, the THz wave on electromagnetic spectrum between the quite ripe millimeter wave of development and infrared light without
It is suspected to be a brand-new research field.THz wave 0.1～10THz of frequency, wavelength is 30 μm～3mm.For a long time, due to lacking
Weary effective THz wave is produced and detection method, and compared with traditional microwave technology and optical technology, people are to the wave band
The understanding of properties of electromagnetic radiation is very few, so that the wave band becomes the Terahertz space in electromagnetic spectrum.With Terahertz spoke
The breakthrough of source and Detection Techniques is penetrated, the unique advantageous characteristic of Terahertz is found and in material science, detection of gas, biology and doctor
Learn the aspects such as detection, communication and show huge application prospect.It may be said that Terahertz Technology science is not only scientific technological advance
In important foundation problem, be again generation information industry and basic science development great demand.Efficient Terahertz spoke
The detection technique for penetrating source and maturation is the most important condition for promoting Terahertz Technology scientific development and application, but Terahertz Technology is wide
General application be unable to do without the support of the practical function element for meeting the requirement of different application field.Terahertz communication, multispectral imaging,
In numerous application systems such as physics, chemistry, grade function element to terahertz waveguide, switch, polarization beam apparatus, filtering and work(
Demand is urgent.
THz wave wave filter is the important THz wave function element of a class, and in recent years THz wave wave filter becomes
The focus and difficult point of research both at home and abroad.But existing THz wave wave filter mostly exist complex structure, filtering performance it is low,
The shortcomings such as cost height, so the THz wave wave filter that research structure is simple, low cost, size are little is significant.
The content of the invention
The present invention is in order to overcome prior art not enough, there is provided a kind of simple structure, filtering performance it is high based on Graphene week
Phase fluting THz wave tunable filter.
In order to achieve the above object, technical scheme is as follows：
Slotted THz wave tunable filter based on the Graphene cycle, including signal input part, signal output part, cycle are opened
Slot structure graphene layer, media plate；Cycle notching construction graphene layer, cycle notching construction Graphene are covered with media plate
Be etched with 8 combination notching construction units of 2 × 4 equidistant arrangements on layer, combination notching construction unit include left rectangular slot,
Rectangular slot, right rectangular slot, U-shaped fluting, inverted U-shaped fluting, wherein the middle part of left rectangular slot, right rectangular slot respectively with square
Shape is slotted, and left and right end is connected, and U-shaped fluting is located at rectangular slot top, and inverted U-shaped fluting is positioned at rectangular slot lower section；THz wave
From signal input part input, cycle notching construction graphene layer, media plate are sequentially passed through, the THz wave of CF can be from
Signal output part is exported, and realizes filter function.When extra electric field changes the dielectric constant of Graphene, Graphene dielectric constant is not
Together, the Terahertz frequency of correspondence output is different, so as to realize adjustable filter function.
Above-mentioned technical proposal can adopt following preferred embodiment：
The length of described cycle notching construction graphene layer is 38～40 μm, and width is 28～30 μm, and thickness is 0.33
～0.34nm.The material of described media plate be silica, refractive index is 1.5, length be 38～40 μm, width be 28～
30 μm, thickness is 15～17 μm.The total length (referring to the entire length of the unit, similarly hereinafter) of described combination notching construction unit is
9～10 μm, overall width (referring to the overall width of the unit, similarly hereinafter) is 5～6 μm, between adjacent combination notching construction unit
Spacing is 2～3 μm.Described left rectangular slot, the dimensional parameters of right rectangular slot are identical, and length is 9～10 μm, and width is equal
For 0.8～1.0 μm.The length of described rectangular slot is 4～5 μm, and width is 0.8～1.0 μm.Described U-shaped fluting, the U that falls
The dimensional parameters of shape fluting are identical, and total length (i.e. the outer peripheral spacing in both sides of length direction, similarly hereinafter) is 3～3.5 μm, always
Width (i.e. the outer peripheral spacing in both sides of width, similarly hereinafter) is 2.5～3 μm, width (i.e. the width of fluting itself, under
0.4～0.6 μm is together).
Being had based on Graphene cycle fluting THz wave tunable filter for the present invention is simple and compact for structure, and size is little,
Small volume, is easy to the advantages of making, and meets wanting in field applications such as THz wave imaging, medical diagnosis, THz wave communications
Ask.
Description of the drawings
Fig. 1 is the structural representation based on Graphene cycle fluting THz wave tunable filter；
Fig. 2 is the structural representation of the graphene film based on Graphene cycle fluting THz wave tunable filter；
Fig. 3 is the structural representation of the combination notching construction unit based on Graphene cycle fluting THz wave tunable filter
Figure；
Fig. 4 is based on Graphene cycle fluting THz wave tunable filter signal output part curve map.
Specific embodiment
As shown in Figures 1 to 3, it is a kind of to be based on Graphene cycle fluting THz wave tunable filter, including signal input part
1st, signal output part 4, cycle notching construction graphene layer 2, media plate 3；Cycle notching construction graphite is covered with media plate 3
Alkene layer 2, is etched with 2 × 48 combination notching construction units 5 for equidistantly arranging, combination on cycle notching construction graphene layer 2
Notching construction unit 5 includes left rectangular slot 6, rectangular slot 7, right rectangular slot 8, U-shaped fluting 9, inverted U-shaped fluting 10, wherein
Left rectangular slot 6, the middle part of right rectangular slot 8 are connected respectively with the left and right end of rectangular slot 7, and U-shaped fluting 9 is located at rectangular slot 7
Top, inverted U-shaped fluting 10 is located at the lower section of rectangular slot 7；THz wave is input into from signal input part 1, sequentially passes through cycle fluting
Structure graphite alkene layer 2, media plate 3, the THz wave of CF can be exported from signal output part 4, realize filter function, when
Extra electric field changes the dielectric constant of Graphene, and Graphene dielectric constant is different, and the Terahertz frequency of correspondence output is different, so as to
Realize adjustable filter function.
The length of described cycle notching construction graphene layer 2 is 38～40 μm, and width is 28～30 μm, and thickness is 0.33
～0.34nm.The material of described media plate 3 is silica, and refractive index is 1.5, and length is 38～40 μm, and width is 28
～30 μm, thickness is 15～17 μm.The total length of described combination notching construction unit 5 is 9～10 μm, and overall width is 5～6 μ
M, the spacing between adjacent combination notching construction unit 5 is 2～3 μm.Described left rectangular slot 6, the chi of right rectangular slot 8
Very little parameter is identical, and length is 9～10 μm, and width is 0.8～1.0 μm.The length of described rectangular slot 7 is 4～5 μm,
Width is 0.8～1.0 μm.Described U-shaped fluting 9, inverted U-shaped fluting 10 dimensional parameters it is identical, total length is 3～3.5 μm,
Overall width is 2.5～3 μm, and width is 0.4～0.6 μm.
Embodiment 1
As shown in Figures 1 to 3, in the present embodiment, the structure of THz wave wave filter is also as previously mentioned (Fig. 1～3), concrete to tie
Structure here is no longer gone to live in the household of one's in-laws on getting married and is chatted.The structural parameters of THz wave wave filter are specially：The length of cycle notching construction graphene layer is 39 μ
M, width is 29 μm, and thickness is 0.33nm.The material of media plate is silica, and refractive index is 1.5, and length is 39 μm, wide
Spend for 29 μm, thickness is 16 μm.The total length of combination notching construction unit is 10 μm, and overall width is 6 μm, adjacent combination fluting
Spacing between construction unit is 3 μm.Left rectangular slot, right rectangular slot dimensional parameters it is identical, length is 10 μm, width
It is 1 μm.The length of described rectangular slot is 4 μm, and width is 1 μm.U-shaped is slotted, the dimensional parameters of inverted U-shaped fluting are identical,
Total length is 3 μm, and overall width is 2.5 μm, and width is 0.5 μm.Fig. 4 is can based on Graphene cycle fluting THz wave
Tunable filter signal output part power output figure, as seen from the figure, Graphene chemical potential μc=0eV, input THz wave is f1=
During 1.715THz, signal output part power output is maximum, and power output is 94.6%, Graphene chemical potential μc=0.1eV, input
THz wave is f2During=1.781THz, signal output part power output is maximum, and power output is 95.1%, Graphene chemical potential
μc=0.2eV, input THz wave is f3During=1.831THz, signal output part power output is maximum, and power output is
94.9%, Graphene chemical potential μc=0.3eV, input THz wave is f4During=1.885THz, signal output part power output is most
Greatly, power output is 95.2%, it is seen that the structure realizes well adjustable filter function.
Claims (7)
1. it is a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that including signal input part (1), letter
Number output end (4), cycle notching construction graphene layer (2), media plate (3)；Media plate is covered with cycle notching construction on (3)
Graphene layer (2), is etched with 2 × 48 combination notching construction lists for equidistantly arranging on cycle notching construction graphene layer (2)
First (5), combination notching construction unit (5) includes left rectangular slot (6), rectangular slot (7), right rectangular slot (8), U-shaped fluting
(9), inverted U-shaped fluting (10), wherein the middle part of left rectangular slot (6), right rectangular slot (8) is left and right with rectangular slot (7) respectively
End is connected, and U-shaped slots (9) positioned at rectangular slot (7) top, and inverted U-shaped fluting (10) is positioned at rectangular slot (7) lower section；Terahertz
Ripple is input into from signal input part (1), sequentially passes through cycle notching construction graphene layer (2), media plate (3), CF
THz wave can be exported from signal output part (4).
2. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
The length in described cycle notching construction graphene layer (2) be 38～40 μm, width be 28～30 μm, thickness be 0.33～
0.34nm。
3. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
The material of described media plate (3) is silica, and refractive index is 1.5, and length is 38～40 μm, and width is 28～30 μm,
Thickness is 15～17 μm.
4. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
The total length of described combination notching construction unit (5) is 9～10 μm, and overall width is 5～6 μm, adjacent combination notching construction
Spacing between unit (5) is 2～3 μm.
5. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
Described left rectangular slot (6), the dimensional parameters of right rectangular slot (8) are identical, and length is 9～10 μm, and width is 0.8～
1.0μm。
6. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
The length of described rectangular slot (7) is 4～5 μm, and width is 0.8～1.0 μm.
7. according to claim 1 a kind of based on Graphene cycle fluting THz wave tunable filter, it is characterised in that
Described U-shaped is slotted (9), the dimensional parameters of inverted U-shaped fluting (10) are identical, and total length is 3～3.5 μm, and overall width is 2.5
～3 μm, width is 0.4～0.6 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206617.4A CN106602184B (en) | 2016-12-23 | 2016-12-23 | Based on graphene period fluting THz wave tunable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206617.4A CN106602184B (en) | 2016-12-23 | 2016-12-23 | Based on graphene period fluting THz wave tunable filter |
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| Publication Number | Publication Date |
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| CN106602184A true CN106602184A (en) | 2017-04-26 |
| CN106602184B CN106602184B (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611206617.4A Expired - Fee Related CN106602184B (en) | 2016-12-23 | 2016-12-23 | Based on graphene period fluting THz wave tunable filter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365307A (en) * | 2018-01-23 | 2018-08-03 | 中国计量大学 | A kind of double adjustable THz wave reflective filters |
| CN108777340A (en) * | 2018-06-11 | 2018-11-09 | 中国计量大学 | The adjustable terahertz filter of full graphene-structured |
| CN109219226A (en) * | 2017-07-06 | 2019-01-15 | 北京北方华创微电子装备有限公司 | A kind of plasma producing apparatus |
| CN109326854A (en) * | 2018-09-10 | 2019-02-12 | 桂林电子科技大学 | A kind of middle tunable IR bandstop filter based on graphene |
| CN114703565A (en) * | 2022-04-21 | 2022-07-05 | 常州富烯科技股份有限公司 | Graphene fiber, graphene fiber reinforced heat conduction gasket and preparation method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219226A (en) * | 2017-07-06 | 2019-01-15 | 北京北方华创微电子装备有限公司 | A kind of plasma producing apparatus |
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| CN108777340A (en) * | 2018-06-11 | 2018-11-09 | 中国计量大学 | The adjustable terahertz filter of full graphene-structured |
| CN109326854A (en) * | 2018-09-10 | 2019-02-12 | 桂林电子科技大学 | A kind of middle tunable IR bandstop filter based on graphene |
| CN109326854B (en) * | 2018-09-10 | 2020-07-17 | 桂林电子科技大学 | Graphene-based intermediate infrared tunable band-stop filter |
| CN114703565A (en) * | 2022-04-21 | 2022-07-05 | 常州富烯科技股份有限公司 | Graphene fiber, graphene fiber reinforced heat conduction gasket and preparation method |
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Address after: 313300 comprehensive building of Anji County Science and technology entrepreneurship Park, Sunshine Industrial Park, Dipu Town, Anji County, Huzhou City, Zhejiang Province Patentee after: China Jiliang University Address before: 310018, No. 258, Yuen Xue street, Jianggan Economic Development Zone, Zhejiang, Hangzhou Patentee before: China Jiliang University |
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Application publication date: 20170426 Assignee: Xinchang China Metrology University Enterprise Innovation Research Institute Co.,Ltd. Assignor: China Jiliang University Contract record no.: X2021330000071 Denomination of invention: Tunable filter based on graphene periodic slotted terahertz wave Granted publication date: 20190118 License type: Common License Record date: 20210816 |
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