CN107085340A - A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer - Google Patents

A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer Download PDF

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Publication number
CN107085340A
CN107085340A CN201710062107.2A CN201710062107A CN107085340A CN 107085340 A CN107085340 A CN 107085340A CN 201710062107 A CN201710062107 A CN 201710062107A CN 107085340 A CN107085340 A CN 107085340A
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layer
controllable
graphene
cape
circular layer
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曹暾
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Dalian University of Technology
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Dalian University of Technology
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D3/00Overgarments
    • A41D3/08Capes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention provides a kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer.The surface that the stealthy cape of controllable three-dimensional optical is made up of graphene circular layer covers shell and realized.Wherein, surface covering shell is that multiple graphene circular layers are superimposed composition from bottom to top, by the fermi-distribution for controlling graphene in different circular layers, dielectric constant and magnetic conductivity that every layer of correspondence is different can be made, the three-dimensional dielectric constant needed for optic camouflage and magnetic conductivity distribution are obtained, cape region should can only be bypassed by the light in stealthy cape region by allowing, and light recovers original distribution after cape region is bypassed, make the object in cape region stealthy.Meanwhile, by fermi-distribution in each graphene circular layer of loop control, the real-time ON/OFF performance of optic camouflage cape is realized, so as to overcome the shortcoming that optic camouflage cape is unable to cycling switch.

Description

A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer
Technical field
The present invention relates to a kind of implementation method of the stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer and Device, can be applied to the control in light wave propagation direction.
Background technology
, document 1 in 2006:“J.B.Pendry et al,SCIENCE,2006(312):1780 " propose using different first The direction of propagation of light wave can be manipulated to medium, optic camouflage clothing concept is realized, the extensive concern of people is caused, as optics The study hotspot in field.The same year, document 2:“D.Schurig et al,SCIENCE,2006(314):977 " microwave section first The stealthy capes of the two-dimentional Meta Materials of experimental verification H mode., document 3 in 2007:“Cai et al,Nature Photonics, 2007(1):224 " propose the stealthy cape of the two-dimentional Meta Materials of transverse magnetic wave., document 4 in 2010:“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 Really.But, the design of current optic camouflage structure is mostly based on two-dimension plane structure model emulation and experiment test, three-dimensional light Stealthy cape is learned then to be rarely reported.
In addition, current optic camouflage cape does not possess tunable function (i.e. the on/off function of optic camouflage) also, change Sentence talks about the structure of optic camouflage cape once it is determined that its Stealth Fighter will be always in the presence of being unalterable later, and its is main Reason is a lack of dielectric constant and magnetic conductance rate coefficient can be by the natural material of active real-time monitoring, and it is hidden that this directly governs optics The further development of body technology.Therefore need to design a kind of optic camouflage function of simple and practical method to optic camouflage cape It is tuned, he has very important significance the practical application to optic camouflage cape, and its practicalization is promoted significantly.
Grapheme material is most studied at present, the most ripe two-dimensional material.Ambient light, heat, electricity, magnetic or should In the presence 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, its dielectric constant and magnetic conductivity.
The present invention provides a kind of controllable optic camouflage cape based on multi-layer graphene material.The three-dimensional controllable optics The surface that stealthy cape is made up of graphene covers shell and realized.Wherein, surface covering shell be multiple graphene circular layers from Lower and upper superposition is constituted, by controlling the fermi-distribution of graphene in different circular layers, Jie that every layer of correspondence can be made different Electric constant and magnetic conductance rate coefficient, obtain optic camouflage needed for three-dimensional dielectric constant and magnetic conductance rate coefficient distribution, and then make light around Cross behind cape region, light field recovers original distribution, realizes optic camouflage function.Meanwhile, pass through each graphene of loop control Fermi level size and location in circular layer, realizes the real-time ON/OFF performance of optic camouflage cape, so as to overcome two-dimension optical The shortcoming that stealthy cape can not be switched.The principle that fermi level of the invention based on graphene circular layer is actively tuned by circulation, can Effectively to save energy, the pseudo- ETL estimated time of loading of extension;In realization, using the widely used device such as electricity, light-operated switch, significantly reduce The complexity and cost of optic camouflage cape, practical application potentiality are big.Using the technology of the present invention, optic camouflage cape can be made (i.e. not stealthy) is closed in most of time, other side is detected some non-productive optical information, and in needs When open stealthy function and allow other side's detection less than its optical signalling, effectively hide various important informations, benumb enemy, make us Action has emergentness.The technology is realizing light illusion, is confusing infrared optics detector and in optic camouflages such as military and civilians In equipment there are huge applications to be worth.
The content of the invention
The technical problems to be solved by the invention are:Overcome existing optic camouflage cape be mostly based on two-dimension plane structure, Do not possess the shortcoming of tunability (being unable to the stealthy function of ON/OFF light) with the stealthy function of optic camouflage cape, utilize graphite There is provided the new technology that one kind realizes controllable (can ON/OFF) the stealthy cape of three-dimensional optical for this common materials of alkene so that system has Standby simple in construction, speed is fast, be easy to operation, energy consumption small, real-time and the low advantage of cost of implementation.
Technical scheme:
A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer, including substrate layer, wall, graphite Surface covering circular layer, internal supporting shell, control unit and the supply unit of alkene circular layer composition;Surface covering circular layer is multiple graphite Alkene circular layer is superimposed between composition, each graphene circular layer from bottom to top wall isolation;Internal supporting shell is in multilayer stone On the inside of black alkene circular layer, for carrying multi-layer graphene circular layer, the target being hidden is positioned over the intracavitary of internal supporting shell;Inside branch Support shell is contacted with graphene circular layer, while internal supporting shell, which corresponds at each graphene circular layer, is drilled with aperture, small aperture It is 1 μm~10cm for 1 μm~1cm, depth;Conducting wire in aperture, wire one end is connected on graphene circular layer, the other end according to Secondary process control unit and supply unit ground connection, by manipulating control unit, can regulate and control supply unit to every layer graphene ring The actuation duration of layer, and then the fermi-distribution of graphene in different graphene circular layers is controlled, every layer graphene ring can be made Layer correspondence different dielectric constant and magnetic conductance rate coefficient, realize the three-dimensional dielectric constant and magnetic conductance rate coefficient point needed for optic camouflage Cloth, and then light is bypassed behind cape region, light field recovers original distribution, realizes optic camouflage function.
The shape of described graphene circular layer be hemisphere, cone, cosine body, positive body with cord, cylinder, semiellipsoid, Square, cuboid or hexahedron, each graphene circular layer can independent control and work;Described graphene circular layer is by M Layer carbon atomic layer is constituted, wherein 1≤M≤1000, and its width is that 1 μm~10cm, thickness are 20nm~10cm.
Described wall is calcium silicates, polyalcohol/polyisocyanates, RPUF, polystyrene bubble Foam plastics, foam glass, In2O3、SnO2Or ITO, its width is that 1nm~10cm, thickness are 1nm~10cm.
Described inside supporting shell is polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3;Described substrate Layer is polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3
Described control unit is automatically controlled, light-operated, acoustic control or magnetic switch;Described supply unit is electric energy, heat energy, light Energy or nuclear energy.
Described multi-layer graphene circular layer structure is realized by Material growth technique, including electron beam evaporation, metal are organic Compound 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 fermi level controllable principle in graphene circular layer, can effectively save Save energy, the pseudo- ETL estimated time of loading of extension;In realization, using the widely used device such as electricity, light-operated switch, optics is significantly reduced hidden The complexity and cost of body cape, practical application potentiality are big.The technology realize light illusion, fascination infrared optics detector and In the optic camouflage equipment such as military and civilian there are huge applications to be worth.
The present invention provides a kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer, can be by additional Electricity, heat, light or magnetic field are realized to the dielectric constant and the distribution of magnetic conductance rate coefficient that change graphene this common materials there is provided one kind The new technology of controllable (can ON/OFF) stealthy cape of three-dimensional optical so that system possesses that simple in construction, speed is fast, be easy to operation, Energy consumption is small, real-time and the low advantage of cost of implementation.
Brief description of the drawings
Fig. 1 (a) is based on the stealthy bucket of controllable three-dimensional optical of N layers of (N >=1) graphene circular layer for one kind that the present invention is provided Paulin sectional drawing.
Fig. 1 (b) is based on the stealthy bucket of controllable three-dimensional optical of N layers of (N >=1) graphene circular layer for one kind that the present invention is provided Paulin top view.
Fig. 2 (a) is internal supporting shell schematic diagram.
Fig. 2 (b) is N layer graphenes circular layer (N >=1) schematic diagram.
Fig. 2 (c) is the stealthy cape schematic diagram of controllable three-dimensional optical.
Fig. 3 (a) is based on the stealthy bucket of controllable three-dimensional optical of N layers of (N >=1) graphene circular layer for one kind that the present invention is provided Paulin opens up under state the optical field distribution situation of (i.e. different graphene circular layers are in different fermi-distributions) in stealthy function.
Fig. 3 (b) is based on the stealthy bucket of controllable three-dimensional optical of N layers of (N >=1) graphene circular layer for one kind that the present invention is provided Paulin under stealthy function closed mode (i.e. different graphene circular layers be in different fermi-distributions) optical field distribution situation.
In figure:1 substrate layer;2N layer graphenes circular layer (N >=1);
The surface covering circular layer of 3 graphene circular layers composition;4 walls;5 inside supporting shells;6 apertures;
7 wires;8 control units;9 supply units;10 ground wires.
Embodiment
To cause the content of technical scheme to become apparent from, this is described in detail below in conjunction with technical scheme and accompanying drawing The embodiment of invention.Material growth technology therein includes:Electron beam evaporation, metallo-organic compound chemical vapor deposition The common technologies such as shallow lake, 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, and such 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
First, internal supporting shell 5 is formed on substrate 1 using Material growth technique, such as shown in accompanying drawing 2 (a);
Then, by Material growth technique and mask process, by designed graphene circular layer in substrate 1 and internal support The outer surface of shell 5 is successively superimposed from the bottom to top, realizes N layer graphene surface loops Rotating fields 2, such as shown in accompanying drawing 2 (b).Wherein, stone The design of black alkene surface circular layer and internal supporting shell can use finite time-domain calculus of finite differences, FInite Element scheduling algorithm.
Internal supporting shell corresponds at each graphene circular layer, is all drilled with aperture 6.Conducting wire 7 in aperture, wire one end It is connected at graphene circular layer, the other end passes through control unit 8 and the ground wire 10 of supply unit 9, by manipulating control unit 8, 9 pairs of actuation durations per layer graphene circular layer of supply unit can be regulated and controled, and then control fermi level in different graphene circular layers Distribution, the dielectric constants and magnetic conductance rate coefficient that every layer graphene circular layer correspondence can be made different realize stealthy required three-dimensional Dielectric constant and the distribution of magnetic conductance rate coefficient, and then light is bypassed behind cape region, light field recovers original distribution, realizes that optics is hidden Body function.A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer is finally realized, shown in such as accompanying drawing 2 (c).
As shown in figure 3, when the graphene in a kind of stealthy cape of controllable three-dimensional optical based on N layer graphene circular layers Fermi-distribution changes, and its dielectric constant and the distribution of magnetic conductance rate coefficient can also change, and then realize light propagation side To regulation and control, realize optic camouflage function "ON" shield external light cause in internal supporting shell 5 institute's hidden objectses not by The external world is detected, i.e., light is logical by not changing its optical field distribution (shown in such as Fig. 3 (a)) and "Off" i.e. light after the optic camouflage cape Cross its optical field distribution after the stealthy cape to change, cause the interior object of putting of internal supporting shell 5 to be detected (such as by the external world Shown in Fig. 3 (b)).
Described above is the technical principle and instantiation that the present invention is applied, the equivalent change that the conception according to the present invention is done Change, if its scheme for being used still covered without departing from specification and drawings spirit when, all should within the scope of the invention, Illustrate hereby.

Claims (10)

1. a kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer, it is characterised in that the controllable is three-dimensional Surface of the optic camouflage cape including substrate layer, wall, graphene circular layer composition covers circular layer, internal supporting shell, control list Member and supply unit;Surface covering circular layer is that multiple graphene circular layers are superimposed between composition, each graphene circular layer from bottom to top There is wall isolation;Internal supporting shell is on the inside of multi-layer graphene circular layer, for carrying multi-layer graphene circular layer, is hidden Target be positioned over the intracavitary of internal supporting shell;Internal supporting shell is contacted with graphene circular layer, while internal supporting shell corresponds to It is drilled with aperture at each graphene circular layer, small aperture is that 1 μm~1cm, depth are 1 μm~10cm;Conducting wire in aperture, Wire one end is connected on graphene circular layer, and the other end sequentially passes through control unit and supply unit ground connection, by manipulating control Unit, regulates and controls actuation duration of the supply unit to every layer graphene circular layer, and then control graphene in different graphene circular layers Fermi-distribution, the dielectric constants and magnetic conductance rate coefficient for making every layer graphene circular layer correspondence different, needed for realizing optic camouflage Three-dimensional dielectric constant and the distribution of magnetic conductance rate coefficient, and then light is bypassed behind cape region, light field recovers original distribution, realize Optic camouflage function.
2. the stealthy cape of controllable three-dimensional optical according to claim 1, it is characterised in that described graphene circular layer Shape is hemisphere, cone, cosine body, positive body with cord, cylinder, semiellipsoid, square, cuboid or hexahedron, each Individual graphene circular layer independent control and work;Described graphene circular layer is made up of M layers of carbon atomic layer, wherein 1≤M≤ 1000, its width is that 1 μm~10cm, thickness are 20nm~10cm.
3. the stealthy cape of controllable three-dimensional optical according to claim 1 or 2, it is characterised in that described wall is Calcium silicates, polyalcohol/polyisocyanates, RPUF, polystyrene foam plastics, foam glass, In2O3、 SnO2Or ITO, its width is that 1nm~10cm, thickness are 1nm~10cm.
4. the stealthy cape of controllable three-dimensional optical according to claim 1 or 2, it is characterised in that described inside support Shell is polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3;Described substrate layer is polyimides, plastics, BK7 optics Glass, SiO2、Si3N4Or Al2O3
5. the stealthy cape of controllable three-dimensional optical according to claim 3, it is characterised in that described inside supporting shell is Polyimides, plastics, BK7 optical glass, SiO2、Si3N4Or Al2O3;Described substrate layer is polyimides, plastics, BK7 optics glass Glass, SiO2、Si3N4Or Al2O3
6. the stealthy cape of controllable three-dimensional optical according to claim 1,2 or 5, it is characterised in that described control list Member is automatically controlled, light-operated, acoustic control or magnetic switch;Described supply unit is electric energy, heat energy, luminous energy or nuclear energy.
7. the stealthy cape of controllable three-dimensional optical according to claim 3, it is characterised in that described control unit is electricity Control, light-operated, acoustic control or magnetic switch;Described supply unit is electric energy, heat energy, luminous energy or nuclear energy.
8. the stealthy cape of controllable three-dimensional optical according to claim 4, it is characterised in that described control unit is electricity Control, light-operated, acoustic control or magnetic switch;Described supply unit is electric energy, heat energy, luminous energy or nuclear energy.
9. the stealthy cape of controllable three-dimensional optical according to claim 1,2,5,7 or 8, it is characterised 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 grows and molecular beam epitaxial method.
10. the stealthy cape of controllable three-dimensional optical according to claim 6, it is characterised in that described multi-layer graphene Circular layer is realized by Material growth technique, including the life of electron beam evaporation, metallo-organic compound chemical gaseous phase deposition, vapour phase epitaxy Long and molecular beam epitaxial method.
CN201710062107.2A 2017-01-31 2017-01-31 A kind of stealthy cape of controllable three-dimensional optical based on multi-layer graphene circular layer Pending CN107085340A (en)

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Cited By (1)

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CN109835010A (en) * 2017-11-29 2019-06-04 深圳光启岗达创新科技有限公司 A kind of Wave suction composite material and preparation method thereof

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN109835010A (en) * 2017-11-29 2019-06-04 深圳光启岗达创新科技有限公司 A kind of Wave suction composite material and preparation method thereof
CN109835010B (en) * 2017-11-29 2021-12-17 深圳光启岗达创新科技有限公司 Wave-absorbing composite material and preparation method thereof

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Application publication date: 20170822