CN107065387A - A kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide - Google Patents
A kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide Download PDFInfo
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- CN107065387A CN107065387A CN201710062128.4A CN201710062128A CN107065387A CN 107065387 A CN107065387 A CN 107065387A CN 201710062128 A CN201710062128 A CN 201710062128A CN 107065387 A CN107065387 A CN 107065387A
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- vanadium dioxide
- layer
- controllable
- cape
- dimensional optical
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/29—Devices 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
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D3/00—Overgarments
- A41D3/08—Capes
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention provides a kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide.The surface that the stealthy cape of controllable three-dimensional optical is made up of vanadium dioxide covers shell and realized.Wherein, surface covering shell is that multiple vanadium dioxide circular layers are superimposed composition from bottom to top, by the lattice structure for controlling vanadium dioxide 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, changed by the lattice structure of vanadium dioxide in each 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
Technical field
The present invention relates to a kind of implementation method of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide and dress
Put, 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.
Vanadium dioxide is most studied at present, the most ripe phase-change material, has been widely used for high-speed memory
In.Vanadium dioxide has insulation figure and the metallic state two states of tetragonal of monocline, in ambient light, heat, electricity, magnetic
Or in the presence of stress, vanadium dioxide can change between insulation figure and metallic state two states, and along with titanium dioxide
The state (lattice structure) of vanadium changes, and reversible change can also occur for its dielectric constant and magnetic conductivity.
The present invention provides a kind of controllable optic camouflage cape based on multilayer vanadium dioxide.The three-dimensional controllable optics is hidden
The surface that body cape is made up of vanadium dioxide covers shell and realized.Wherein, covering shell in surface is multiple vanadium dioxide circular layers
Superposition is constituted from bottom to top, by controlling the lattice structure of vanadium dioxide in different circular layers, Jie that every layer of correspondence can be made different
Electric constant and magnetic conductance rate coefficient, three-dimensional dielectric constant and the distribution of magnetic conductance rate coefficient needed for acquisition optic camouflage, and then make light
Bypass behind cape region, light field recovers original distribution, realizes optic camouflage function.Meanwhile, pass through each circular layer of loop control
The change procedure of the metallic state of insulation figure-tetragonal of the monocline of middle vanadium dioxide, realizes optic camouflage cape
Real-time ON/OFF performance, so as to overcome the shortcoming that optic camouflage cape can not be switched.The present invention is based on vanadium dioxide lattice structure
Controllable principle, can effectively save energy, the pseudo- ETL estimated time of loading of extension；In realization, using the widely used device such as electricity, light-operated switch
Part, significantly reduces the complexity and cost of optic camouflage cape, and practical application potentiality are big.Using the technology of the present invention, it can make
Optic camouflage cape is closed (i.e. not stealthy) in most of time, other side is detected some non-productive opticals letter
Breath, and hot stealthy function is opened when needing and allows other side's detection less than its optical signalling, various important informations are effectively hidden,
Enemy is benumbed, us is taken action has emergentness.The technology is realizing light illusion, is confusing infrared optics detector and in military affairs
There is huge applications value with civilian wait in optic camouflage equipment.
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 dioxy
Changing this common materials of vanadium, there is provided the new technology that one kind realizes controllable (can ON/OFF) the stealthy cape of three-dimensional optical so that system
Possess that 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 multilayer vanadium dioxide, including substrate layer, wall, titanium dioxide
The surface covering circular layer of vanadium circular layer composition, the thin metal layer paster for investing vanadium dioxide circular layer inwall, internal supporting shell, control are single
Member and supply unit；Surface covering circular layer is that multilayer vanadium dioxide circular layer is superimposed composition, every layer of vanadium dioxide circular layer from bottom to top
There is wall isolation between the equal metal clad thin layer paster of inner wall surface, every layer of vanadium dioxide circular layer；Internal supporting shell is in
On the inside of multilayer vanadium dioxide circular layer, for carrying multilayer vanadium dioxide circular layer, the target being hidden is placed in the chamber of internal supporting shell
It is interior；Internal supporting shell is contacted with thin metal layer paster, is drilled with while internal supporting shell corresponds at each thin metal layer paster
Aperture, small aperture is that 1 μm~1cm, depth are 1 μm~10cm；Conducting wire in aperture, wire one end is connected to thin metal layer
On paster, the other end sequentially passes through control unit and supply unit ground connection, and by manipulating control unit, regulation and control supply unit is to every
The heat time of layer vanadium dioxide circular layer, and then control the lattice structure of vanadium dioxide in different vanadium dioxide circular layers, i.e. dioxy
Change vanadium and changed between the insulation figure of monocline and the metallic state of tetragonal, make every layer of vanadium dioxide circular layer correspondence different
Dielectric constant and magnetic conductance rate coefficient, realize the three-dimensional dielectric constant needed for optic camouflage and the distribution of magnetic conductance rate coefficient, and then make
Light is bypassed behind cape region, and optical field recovers original distribution, realizes optic camouflage function.
The vanadium shape of described vanadium dioxide circular layer is hemisphere, cone, cosine body, positive body with cord, cylinder, semiellipse
Body, square, cuboid or hexahedron, every layer of vanadium dioxide circular layer independent control and work；The width of vanadium dioxide circular layer is 1
μm~10cm, thickness be 20nm~10cm.
Described thin metal layer paster is Al pieces, Ag pieces, Au pieces, Cu pieces or Ni pieces, and its width is 1 μm~10cm, thickness
For 20nm~10cm.
The material of described wall is calcium silicates, polyalcohol/polyisocyanates, RPUF, polyphenyl
Vinylic foam, 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, pressure or nuclear energy；
Described multilayer vanadium dioxide structure is realized by Material growth technique, including electron beam evaporation, Organometallic
Compound chemical gaseous phase deposition, vapor phase epitaxial growth and molecular beam epitaxial method.
The present invention is based on the variable principle of vanadium dioxide lattice structure, can effectively save energy, the pseudo- ETL estimated time of loading of extension；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.The technology is being realized light illusion, fascination infrared optics detector and set in optic camouflages such as military and civilians
There is huge applications value in standby.
The present invention provides a kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide, can be by additional
Electricity, heat, light or magnetic field to change vanadium dioxide this common materials dielectric constant and the distribution of magnetic conductance rate coefficient there is provided a kind of real
The new technology of existing controllable (can ON/OFF) stealthy cape of three-dimensional optical so that system possesses that simple in construction, speed is fast, be easy to behaviour
Make, 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 cape of controllable three-dimensional optical of N layers of (N >=1) vanadium dioxide for one kind that the present invention is provided
Sectional drawing.
Fig. 1 (b) is based on the stealthy cape of controllable three-dimensional optical of N layers of (N >=1) vanadium dioxide for one kind that the present invention is provided
Top view.
Fig. 2 (a) is internal supporting shell schematic diagram.
Fig. 2 (b) is N layers of vanadium dioxide circular layer surface covering 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 cape of controllable three-dimensional optical of N layers of (N >=1) vanadium dioxide for one kind that the present invention is provided
The optical field distribution situation under state is opened up in stealthy function.
Fig. 3 (b) is based on the stealthy cape of controllable three-dimensional optical of N layers of (N >=1) vanadium dioxide for one kind that the present invention is provided
Optical field distribution situation under stealthy function closed mode.
In figure：1 substrate layer；2N layers of vanadium dioxide circular layer surface covering circular layer (N >=1)；3 thin metal layer pasters；4 intervals
Layer；5 inside supporting shells；6 stealthy regions；7 apertures；8 wires；9 control units；10 supply units；11 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 vanadium dioxide circular layer in substrate 1 and internal branch
The outer surface of support shell 5 is successively superimposed from the bottom to top, N layers of vanadium dioxide surface covering circular layer 2 is realized, such as shown in accompanying drawing 2 (b).Its
In, the design of vanadium dioxide surface circular layer and internal supporting shell can use finite time-domain calculus of finite differences, FInite Element scheduling algorithm.Gold
Category thin layer paster 3 is formed on internal ring wall and internal branch that N layers of (N >=1) vanadium dioxide surface cover circular layer 2 by coating process
Between the outer wall for supportting shell 5.
Internal supporting shell corresponds at each thin metal layer paster 3, is all drilled with aperture 7.Conducting wire 8 in aperture, wire
One end is connected on thin metal layer paster 3, and the other end passes through control unit 9 and the ground wire 11 of supply unit 10, is controlled by manipulating
Unit 9 processed, can regulate and control the heat time of 10 pairs of every layer of vanadium dioxide of supply unit, and then control vanadium dioxide in different circular layers
Lattice variations, the dielectric constants and magnetic conductance rate coefficient that every layer of vanadium dioxide circular layer correspondence can be made different realize the stealthy institute of light
Three-dimensional dielectric constant and magnetic conductance the rate coefficient distribution needed, and then light is bypassed behind cape region, light field recovers original distribution,
Realize optic camouflage function.Finally realize a kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide, such as accompanying drawing 2
(c) shown in.
As shown in figure 3, when the vanadium dioxide in a kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide
Generating state change, its dielectric constant and the distribution of magnetic conductance rate coefficient can also change, and then realize the tune of optical propagation direction
Control, realizes that the "ON" of optic camouflage function shields external light and make it that institute's hidden objectses are not by extraneous institute in internal supporting shell 5
Detection, i.e. light pass through this by not changing its optical field distribution (shown in such as Fig. 3 (a)) and "Off" i.e. light after the optic camouflage cape
Its optical field distribution changes after stealthy cape, causes the interior object of putting of internal supporting shell 5 to detect (such as Fig. 3 by the external world
(b) shown in).
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 multilayer vanadium dioxide, it is characterised in that the controllable three-dimensional light
Stealthy cape is learned to cover circular layer including the surface that substrate layer, wall, vanadium dioxide circular layer are constituted, invest in vanadium dioxide circular layer
The thin metal layer paster of wall, internal supporting shell, control unit and supply unit；Surface covering circular layer is multilayer vanadium dioxide circular layer
Superposition is constituted from bottom to top, every layer of equal metal clad thin layer paster of vanadium dioxide circular layer inner wall surface, every layer of vanadium dioxide circular layer
Between have wall isolation；Internal supporting shell is on the inside of multilayer vanadium dioxide circular layer, for carrying multilayer vanadium dioxide ring
Layer, the target being hidden is placed in the intracavitary of internal supporting shell；Internal supporting shell is contacted with thin metal layer paster, while internal support
Shell, which corresponds at each thin metal layer paster, is drilled with aperture, and small aperture is that 1 μm~1cm, depth are 1 μm~10cm；Aperture
Interior conducting wire, wire one end is connected on thin metal layer paster, and the other end sequentially passes through control unit and supply unit ground connection,
By manipulating control unit, regulate and control heat time of the supply unit to every layer of vanadium dioxide circular layer, and then control different titanium dioxides
In vanadium circular layer the lattice structure of vanadium dioxide, i.e. vanadium dioxide monocline insulation figure and tetragonal metallic state it
Between change, the dielectric constants and magnetic conductance rate coefficient for making every layer of vanadium dioxide circular layer correspondence different realize three needed for optic camouflage
Dielectric constant and the distribution of magnetic conductance rate coefficient are tieed up, and then light is bypassed behind cape region, optical field recovers original distribution, is realized
Optic camouflage function.
2. the stealthy cape of controllable three-dimensional optical according to claim 1, it is characterised in that described vanadium dioxide circular layer
Shape be hemisphere, cone, cosine body, positive body with cord, cylinder, semiellipsoid, square, cuboid or hexahedron, often
Layer vanadium dioxide circular layer independent control and work；The width of vanadium dioxide circular layer 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 thin metal layer
Paster is Al pieces, Ag pieces, Au pieces, Cu pieces or Ni pieces, and its width is that 1 μm~10cm, thickness are 20nm~10cm.
4. the stealthy cape of controllable three-dimensional optical according to claim 1 or 2, it is characterised in that described wall
Material be calcium silicates, polyalcohol/polyisocyanates, RPUF, polystyrene foam plastics, foam glass,
In2O3、SnO2Or ITO, its width is that 1nm~10cm, thickness are 1nm~10cm.
5. the stealthy cape of controllable three-dimensional optical according to claim 3, it is characterised in that the material of described wall
For calcium silicates, polyalcohol/polyisocyanates, RPUF, polystyrene foam plastics, foam glass, In2O3、
SnO2Or ITO, its width is that 1nm~10cm, thickness are 1nm~10cm.
6. the stealthy cape of controllable three-dimensional optical according to claim 1,2 or 5, it is characterised in that described inside branch
It is polyimides, plastics, BK7 optical glass, SiO to support shell2、Si3N4Or Al2O3；Described substrate layer is polyimides, plastics, BK7 light
Learn glass, SiO2、Si3N4Or Al2O3。
7. 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。
8. the stealthy cape of controllable three-dimensional optical according to claim 4, 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。
9. the stealthy cape of controllable three-dimensional optical according to claim 1,2,5,7 or 8, it is characterised in that described control
Unit processed is automatically controlled, light-operated, acoustic control or magnetic switch；Described supply unit is electric energy, heat energy, luminous energy, pressure or nuclear energy.
10. 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 vanadium dioxide circular layer realized by Material growth technique, including electron beam evaporation, metallo-organic compound chemical gaseous phase deposition,
Vapor phase epitaxial growth and molecular beam epitaxial method.
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| CN201710062128.4A CN107065387A (en) | 2017-01-31 | 2017-01-31 | A kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide |
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| CN201710062128.4A CN107065387A (en) | 2017-01-31 | 2017-01-31 | A kind of stealthy cape of controllable three-dimensional optical based on multilayer vanadium dioxide |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080024792A1 (en) * | 2006-07-25 | 2008-01-31 | John Pendry | Electromagnetic Cloaking Method |
| US20110085229A1 (en) * | 2009-10-13 | 2011-04-14 | Kent State University | Methods and Apparatus for Controlling Dispersions of Nanoparticles |
-
2017
- 2017-01-31 CN CN201710062128.4A patent/CN107065387A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080024792A1 (en) * | 2006-07-25 | 2008-01-31 | John Pendry | Electromagnetic Cloaking Method |
| US20110085229A1 (en) * | 2009-10-13 | 2011-04-14 | Kent State University | Methods and Apparatus for Controlling Dispersions of Nanoparticles |
Non-Patent Citations (4)
| Title |
|---|
| ALI MIRZAEI: "All-Dielectric Multilayer Cylindrical Structures for Invisibility Cloaking", 《SCIENTIFIC REPORTS》 * |
| KOPPÁNY KÖRMÖCZI: "Near-Infrared Invisibility Cloak Engineered With Two-Phase Metal-Dielectric Composites", 《IEEE TRANSACTIONS ON MAGNETICS》 * |
| PEINING LI: "A frequency-tunable cloak with semiconducting constituents", 《JOURNAL OF PHYSICS D: APPLIED PHYSICS》 * |
| RUNREN ZHANG ET AL: "Free-space carpet cloak using transformation optics and graphene", 《OPTICS LETTERS》 * |
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