CN106983188B - A kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer - Google Patents
A kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 71
- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 238000005566 electron beam evaporation Methods 0.000 claims description 4
- 239000005304 optical glass Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
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- 239000007792 gaseous phase Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 2
- 235000012241 calcium silicate Nutrition 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000011494 foam glass Substances 0.000 claims description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
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- 208000027534 Emotional disease Diseases 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
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- 230000003628 erosive effect Effects 0.000 description 1
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- -1 graphite Alkene Chemical class 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D3/00—Overgarments
- A41D3/08—Capes
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Carbon And Carbon Compounds (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The present invention provides a kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer.The controllable stealthy cape of two-dimension optical is by graphene circular layer using x-y horizontal plane center as axis, it is formed in x, the layer-by-layer continuation in y-axis direction, by the fermi-distribution for controlling graphene in different circular layers, the dielectric constant and magnetic conductance rate coefficient that every layer of correspondence can be made different, two-dimentional dielectric constant needed for obtaining optic camouflage and the distribution of magnetic conductance rate coefficient, and then make light around behind cape region, light field restores original distribution, realize light stealthy function, ambient interference is masked to be in the object at optic camouflage cape center, while not influencing extraneous optical field distribution.Meanwhile changing the dielectric constant and surface resistivity of graphene by fermi-distribution in each graphene circular layer of loop control, the real-time ON/OFF performance of optic camouflage cape is realized, to overcome the shortcomings that stealthy cape of two-dimension optical is unable to cycling switch.
Description
Technical field
The implementation method of the present invention relates to a kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer and
Device can be applied to light field control field.
Background technique
2006, document 1: " J.B.Pendry et al, SCIENCE, 2006 (312): 1780 " were put forward for the first time using different
The direction of propagation of light wave can be manipulated to medium, realized optic camouflage clothing concept, caused the extensive concern of people, become optics
The research hotspot in field.The same year, document 2: " D.Schurig et al, SCIENCE, 2006 (314): 977 " microwave section for the first time
Experimental verification H mode two dimension Meta Materials stealthy capes.2007, document 3: " Cai et al, Nature Photonics,
2007 (1): 224 " propose the stealthy cape of transverse magnetic wave two dimension Meta Materials.2010, document 4: " Ma et al, Nature
Communications, 2010 (1): 124 ", which propose the two-dimensional array of apertures based on dielectric-slab, realizes the stealthy effect of electromagnetic wave
Fruit.But the design of two-dimension optical stealth structure at present, do not have tunable function (the i.e. ON/OFF function of optic camouflage also
Can), in other words the structure of optic camouflage cape once it is determined that later its Stealth Fighter will always exist be it is unalterable,
The main reason is that shortage dielectric constant and magnetic conductance rate coefficient can be by the natural materials of active real-time monitoring, this is directly restrict
The further development of optic camouflage technology.Therefore it needs to design a kind of simple and practical method hidden to the optics of optic camouflage cape
Body function is tuned, he will have very important significance to the practical application of optic camouflage cape, promotes its practical significantly
Change process.
Grapheme material is most studied at present, the most mature two-dimensional material.In ambient light, heat, electricity, magnetic or answer
Under the action of power, the fermi level size and location of grapheme material can be tuned actively, and along with grapheme material
Reversible change can also occur for the change of fermi level size and location, dielectric constant and magnetic conductivity.
The present invention provides a kind of controllable optic camouflage cape of two dimension based on multi-layer graphene circular layer.The two dimension is controllable
Optic camouflage cape is by graphene circular layer using x-y horizontal plane center as axis, is formed, is passed through in x, the layer-by-layer continuation in y-axis direction
The fermi level size and location in different graphene circular layers is controlled, the dielectric constant and magnetic conductance that every layer of correspondence can be made different
Rate, two-dimentional dielectric constant needed for obtaining optic camouflage and magnetic conductivity distribution, and then make light around behind cape region, light field is restored
Optic camouflage function is realized in distribution originally, masks ambient light interference to be in the object at optic camouflage cape center, simultaneously
Extraneous optical field distribution is not influenced.Meanwhile by the fermi level size and location in each graphene circular layer of loop control, realize
The real-time ON/OFF performance of optic camouflage cape, to overcome the shortcomings that stealthy cape of two-dimension optical cannot switch.Base of the present invention
In the principle that the fermi level of graphene circular layer is actively tuned by circulation, energy can be effectively saved, extends pseudo- ETL estimated time of loading；In reality
On now, using the widely used device such as electricity, light-operated switch, the complexity and cost of optic camouflage cape are significantly reduced, it is real
Border application potential is big.Using the technology of the present invention, optic camouflage cape can be made to be in close state in most of time (i.e. not
It is stealthy), so that other side is detected some non-productive optical information, and open stealthy function when needed and allow other side's detection less than it
Optical signalling effectively hides various important informations, benumbs enemy, and so that us is taken action has emergentness.The technology is realizing that light is unreal
Think, confuse infrared optics detector and have in the optic camouflages equipment such as military and civilian huge applications value.
Summary of the invention
It can the technical problems to be solved by the present invention are: the stealthy function of the stealthy cape of existing two-dimension optical is overcome not have
The shortcomings that tuning performance (being unable to the stealthy function of ON/OFF light), it is controllable to provide a kind of realization using this common materials of graphene
The new technology of (can ON/OFF) stealthy cape of two-dimension optical, so that system has, structure is simple, speed is fast, convenient for operation, energy consumption
The advantages such as small, strong real-time and cost of implementation are low.
Technical solution of the present invention:
A kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer, including substrate layer, interval circular layer, stone
Black alkene circular layer, control unit and supply unit；
The controllable stealthy cape of two-dimension optical is by graphene circular layer using x-y horizontal plane center as axis, in x, y-axis side
It is formed to layer-by-layer continuation, there is interval circular layer isolation between every two graphene circular layer；
Substrate layer is in below two-dimentional multi-layer graphene circular layer, for carrying two-dimentional multi-layer graphene circular layer, is hidden
Target is placed in the center of two-dimentional multi-layer graphene circular layer；
Substrate layer is contacted with multi-layer graphene circular layer, while substrate layer is small corresponding to being drilled at each graphene circular layer
Hole, small aperture is 1 μm~1cm, depth is 1cm~10cm；Conducting wire in aperture, conducting wire one end are connected to graphene circular layer
On, the other end, which successively passes through control unit and supply unit ground connection, can regulate and control supply unit to every by manipulating control unit
The actuation duration of layer graphene circular layer, and then the size and location of the fermi level in different graphene circular layers is controlled, it can make
Every layer of graphene circular layer corresponds to different dielectric constant and magnetic conductance rate coefficient, two-dimentional dielectric constant needed for realizing optic camouflage and
The distribution of magnetic conductance rate coefficient, and then after so that light is bypassed two-dimentional cape region, light field restores original distribution, realizes optic camouflage function.
The shape of the graphene circular layer is annulus, elliptical ring, square ring, straight-flanked ring or six side rings, each graphite
Alkene circular layer can independent control and work；Graphene circular layer is made of M layers of carbon atomic layer, wherein 1≤M≤1000；Graphene ring
The width of layer is 1 μm~10cm, with a thickness of 20nm~10cm.
The wall is calcium silicates, polyalcohol/polyisocyanates, rigid polyurethane foam, polystyrene bubble
Foam plastics, foam glass, In2O3、SnO2Or ITO, width are 1 μm~10cm, with a thickness of 20nm~10cm.
The inside supporting shell is polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3；The substrate
Layer is polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3。
The control unit is automatically controlled, light-operated, acoustic control or magnetic switch；The supply unit be electric energy, thermal energy or
Luminous energy.
The multi-layer graphene circular layer is realized by Material growth technique, including electron beam evaporation, Organometallic close
Object chemical gaseous phase deposition, vapor phase epitaxial growth and molecular beam epitaxial method.
Beneficial effects of the present invention: the present invention is based on the controllable principles of fermi level in graphene circular layer, effectively saving energy
Amount extends pseudo- ETL estimated time of loading；In realization, using the widely used device such as electricity, light-operated switch, optic camouflage bucket is significantly reduced
The complexity and cost of paulin, practical application potentiality are big.The technology is realizing light illusion, fascination infrared optics detector, He Jun
There is huge applications value in thing and civilian equal optic camouflages equipment.
The present invention provides a kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer, can be by additional
Electricity, heat, light or magnetic field change dielectric constant and the magnetic conductivity distribution of this common materials of graphene circular layer, and providing a kind of realization can
The new technology of regulation (can ON/OFF) stealthy cape of two-dimension optical, so that system has, structure is simple, speed is fast, convenient for operation, energy
Consume small, strong real-time and the advantages such as cost of implementation is low.
Detailed description of the invention
Fig. 1 (a) is a kind of controllable optic camouflage bucket of two dimension based on N layers of (N >=1) graphene circular layer provided by the invention
Paulin sectional drawing.
Fig. 1 (b) is a kind of controllable optic camouflage bucket of two dimension based on N layers of (N >=1) graphene circular layer provided by the invention
Paulin top view.
Fig. 2 (a) is N layers of graphene circular layer (N >=1) schematic diagram.
Fig. 2 (b) is the controllable optic camouflage cape schematic diagram of two dimension.
Fig. 3 (a) is a kind of controllable optic camouflage bucket of two dimension based on N layers of (N >=1) graphene circular layer provided by the invention
Paulin opens up under state the optical field distribution feelings of (i.e. different graphene circular layers are in different fermi-distributions) in optic camouflage function
Condition.
Fig. 3 (b) is a kind of controllable optic camouflage bucket of two dimension based on N layers of (N >=1) graphene circular layer provided by the invention
Paulin under optic camouflage function closed state (i.e. different graphene circular layers are in different fermi-distributions) optical field distribution feelings
Condition.
In figure: 1 substrate layer；2N layers of graphene circular layer (N >=1)；3 graphene circular layers；4 walls；
5 apertures；6 conducting wires；7 control units；8 supply units；9 ground wires.
Specific embodiment
To be more clear the content of technical solution of the present invention, this is described in detail below in conjunction with technical solution and attached drawing
The specific embodiment of invention.Material growth technology therein includes: electron beam evaporation, metallo-organic compound chemical vapor deposition
It forms sediment, the common technologies such as vapor phase epitaxial growth and molecular beam epitaxy technique.Mask process therein includes electron beam exposure and focusing
The common technologies such as ion beam exposure.Etching technics therein includes wet etching and dry etching, as acid system etching, electron beam are carved
The conventional process such as erosion, focused-ion-beam lithography and reactive ion beam etching (RIBE).
Embodiment 1
Firstly, designed two-dimensional graphene circular layer 3 and wall 4 are made by Material growth technique and mask process
For in the upper surface of substrate 1, i.e. two-dimensional graphene circular layer 3 and wall 4 is axis from the inside to the outside in x, y using x-y horizontal plane center
The layer-by-layer period alternating continuation of axis direction is formed, and realizes N layers of graphene two dimension circular layer 2 (attached drawing 2 (a)).
Wherein, the design of graphene circular layer can use finite time-domain calculus of finite differences, FInite Element scheduling algorithm.
Substrate corresponds at each graphene circular layer, is all drilled with aperture 5.Conducting wire 6 in aperture, conducting wire one end are connected to
At each graphene circular layer, the other end, can be with by manipulating control unit 7 by control unit 7 and the ground line of supply unit 89
Regulate and control supply unit 8 to the actuation duration of every layer of graphene circular layer, and then controls point of fermi level in different graphene circular layers
Cloth can make every layer of graphene circular layer correspond to different dielectric constant and magnetic conductance rate coefficient, two dimension needed for realizing optic camouflage
Dielectric constant and the distribution of magnetic conductance rate coefficient, and then make light around behind cape region, light field restores original distribution, realizes that optics is hidden
Body function.Finally realize a kind of stealthy cape of controllable two-dimension optical (attached drawing 2 (b)) based on multi-layer graphene circular layer.
As shown in figure 3, when the graphene in a kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer
Fermi-distribution change, dielectric constant and magnetic conductance rate coefficient distribution can also change, and then realize light propagation
The regulation in direction, including opening optic camouflage function: the object for being as in optic camouflage cape center masks extraneous light field
Interference, while extraneous optical field distribution is not influenced, it is not detected by the external world, i.e., light is not by changing its field distribution after the stealthy cape
(shown in such as Fig. 3 (a))；Close optic camouflage function: i.e. light is changed by its optical field distribution after the optic camouflage cape, is led
Cause the object put at optic camouflage cape center that can be detected by the external world (shown in such as Fig. 3 (b)).
The above is the technical principle and specific example that the present invention applies, the equivalent change done according to the concept of the present invention
Change, if its scheme for being used still covered without departing from the description and the appended drawings spirit when, should all within the scope of the invention,
Illustrate hereby.
Claims (10)
1. a kind of stealthy cape of controllable two-dimension optical based on multi-layer graphene circular layer, which is characterized in that the controllable two dimension
Optic camouflage cape includes substrate layer, interval circular layer, graphene circular layer, control unit and supply unit；
The controllable stealthy cape of two-dimension optical is by graphene circular layer using x-y horizontal plane center as axis, x, y-axis direction by
Layer continuation is formed, and has interval circular layer isolation between every two graphene circular layer；
Substrate layer is in below two-dimentional multi-layer graphene circular layer, for carrying two-dimentional multi-layer graphene circular layer, the target being hidden
It is placed in the center of two-dimentional multi-layer graphene circular layer；
Substrate layer is contacted with multi-layer graphene circular layer, at the same substrate layer correspond to each graphene circular layer at be drilled with aperture, it is small
Hole aperture is 1 μm~1cm, depth is 1cm~10cm；Conducting wire in aperture, conducting wire one end are connected on graphene circular layer, separately
Control unit and supply unit ground connection are successively passed through in one end, by manipulating control unit, regulate and control supply unit to every layer of graphene
The actuation duration of circular layer, and then the size and location of the fermi level in different graphene circular layers is controlled, make every layer of graphene ring
Layer corresponding different dielectric constant and magnetic conductance rate coefficient, two-dimentional dielectric constant needed for realizing optic camouflage and magnetic conductance rate coefficient point
Cloth, and then after so that light is bypassed two-dimentional cape region, light field restores original distribution, realizes optic camouflage function.
2. the stealthy cape of controllable two-dimension optical according to claim 1, which is characterized in that the graphene circular layer
Shape is annulus, elliptical ring, straight-flanked ring or six side rings, each graphene circular layer independent control and work；Graphene circular layer is
It is made of M layers of carbon atomic layer, wherein 1≤M≤1000；The width of graphene circular layer be 1 μm~10cm, with a thickness of 20nm~
10cm。
3. the stealthy cape of controllable two-dimension optical according to claim 1 or 2, which is characterized in that the interval circular layer
It is calcium silicates, rigid polyurethane foam, polystyrene foam plastics, foam glass, In2O3、SnO2Or ITO, width are
1 μm~10cm, with a thickness of 20nm~10cm.
4. the stealthy cape of controllable two-dimension optical according to claim 1 or 2, which is characterized in that the substrate layer is
Plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3。
5. the stealthy cape of controllable two-dimension optical according to claim 3, which is characterized in that the substrate layer is modeling
Material, BK7 optical glass, SiO2、Si3N4Or Al2O3。
6. according to claim 1, the controllable stealthy cape of two-dimension optical described in 2 or 5, which is characterized in that the control list
Member is automatically controlled, light-operated, acoustic control or magnetic switch；The supply unit is electric energy, thermal energy or luminous energy.
7. the stealthy cape of controllable two-dimension optical according to claim 3, which is characterized in that the control unit is electricity
Control, light-operated, acoustic control or magnetic switch；The supply unit is electric energy, thermal energy or luminous energy.
8. the stealthy cape of controllable two-dimension optical according to claim 4, which is characterized in that the control unit is electricity
Control, light-operated, acoustic control or magnetic switch；The supply unit is electric energy, thermal energy or luminous energy.
9. according to claim 1, the controllable stealthy cape of two-dimension optical described in 2,5,7 or 8, which is characterized in that described is more
Layer graphene circular layer is realized by Material growth technique, including electron beam evaporation, metallo-organic compound chemical gaseous phase deposition, gas
Phase epitaxy growth and molecular beam epitaxial method.
10. the stealthy cape of controllable two-dimension optical according to claim 6, which is characterized in that the multi-layer graphene
Circular layer is realized by Material growth technique, including electron beam evaporation, metallo-organic compound chemical gaseous phase deposition, vapour phase epitaxy are raw
Long or molecular beam epitaxial method.
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| US7525711B1 (en) * | 2005-08-31 | 2009-04-28 | The United States Of America As Represented By The Secretary Of The Navy | Actively tunable electromagnetic metamaterial |
| CN103018926A (en) * | 2012-12-13 | 2013-04-03 | 大连理工大学 | Tunable microwave-absorbing artificial electromagnetic metamaterial based on topology/graphene |
| CN103050783A (en) * | 2012-12-13 | 2013-04-17 | 大连理工大学 | Artificial electromagnetic metamaterial with tunable negative refraction index based on topology and graphene materials |
| CN104585913B (en) * | 2013-11-01 | 2016-07-06 | 武汉飞恩微电子有限公司 | There is the human body air conditioner intelligent wear of infrared stealth function and waterproof and breathable |
| CN104726034B (en) * | 2015-03-19 | 2017-03-29 | 哈尔滨工业大学 | A kind of visible infrared multi-Functional Camouflage device and preparation method thereof |
| CN104991291B (en) * | 2015-06-26 | 2017-01-25 | 中国人民解放军国防科学技术大学 | Infrared stealth film capable of achieving low emissivity in band range from 8 microns to 14 microns selectively, and preparation method for infrared stealth film |
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