CN107085317A - A kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material - Google Patents
A kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material Download PDFInfo
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- CN107085317A CN107085317A CN201710062113.8A CN201710062113A CN107085317A CN 107085317 A CN107085317 A CN 107085317A CN 201710062113 A CN201710062113 A CN 201710062113A CN 107085317 A CN107085317 A CN 107085317A
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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
- G02F1/0009—Materials therefor
- G02F1/0081—Electric or magnetic properties
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
Abstract
The invention provides a kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material.The surface that the stealthy cape of controllable three-dimensional optical is made up of paraffin composite phase change material covers shell and realized.Wherein, surface covering shell is that multiple paraffin composite phase change material circular layers are superimposed composition from bottom to top, by the solid-liquid state for controlling paraffin composite phase change material 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 the solid-liquid state of paraffin composite phase change material 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 realization of the stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material
Method and apparatus, 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.
Paraffin composite phase change material has solid-state and liquid two states, in the work of ambient light, heat, electricity, magnetic or stress
Under, paraffin composite phase change material can change between solid-state and liquid two states, and along with paraffin composite phase change material
State change, 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 paraffin composite phase change material.The three-dimensional is adjustable
The surface that control optic camouflage cape is made up of paraffin composite phase change material covers shell and realized.Wherein, covering shell in surface is
Multiple paraffin composite phase change material circular layers are superimposed composition from bottom to top, by controlling paraffin composite phase change material in different circular layers
Solid-liquid state, can make the different dielectric constant of every layer of correspondence and magnetic conductance rate coefficient, obtain the three-dimensional dielectric needed for optic camouflage
Constant and the distribution of magnetic conductance rate coefficient, and then light is bypassed behind cape region, light field recovers original distribution, realizes optic camouflage
Function.Meanwhile, by the solid-liquid state of paraffin composite phase change material in each circular layer of loop control, realize 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 paraffin composite phase change material
Expect mushy stage reversible transformation principle, can effectively save energy, the pseudo- ETL estimated time of loading of extension；In realization, using electricity, light-operated switch
Etc. widely used device, the complexity and cost of optic camouflage cape are significantly reduced, practical application potentiality are big.Use this hair
Bright technology, can make optic camouflage cape be closed (i.e. not stealthy) in most of time, other side is detected one
A little non-productive optical information, and hot stealthy function is opened when needing and allows other side's detection less than its optical signalling, effectively hide
Various important informations, benumb enemy, and us is taken action has emergentness.The technology is realizing light illusion, fascination infrared optics inspection
Survey device and in the optic camouflage equipment such as military and civilian 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 paraffin
This common materials of composite phase-change material there is provided the new technology that one kind realizes controllable (can ON/OFF) the stealthy cape of three-dimensional optical,
So that system possesses, 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 paraffin composite phase change material, including substrate layer, interval
Layer, the surface covering circular layer of paraffin composite phase change material circular layer composition, the metal for investing paraffin composite phase change material circular layer inwall
Thin layer paster, internal supporting shell, control unit and supply unit；Surface covering circular layer is multiple paraffin composite phase change material circular layers
Superposition is constituted from bottom to top, each equal metal clad thin layer paster of paraffin composite phase change material circular layer inner wall surface, each two stone
There is wall isolation between wax composite phase-change material circular layer；Internal supporting shell is in multilayer paraffin composite phase change material circular layer
Side, for carrying multilayer paraffin composite phase change material circular layer, the target being hidden is positioned over the intracavitary of internal supporting shell；Inside branch
Support shell is contacted with thin metal layer paster, while internal supporting shell, which corresponds at each thin metal layer paster, is drilled with aperture, aperture
Aperture is that 1 μm~1cm, depth are 1 μm~10cm；Conducting wire in aperture, wire one end is connected on thin metal layer paster, separately
One end sequentially passes through control unit and supply unit ground connection, by manipulating control unit, can regulate and control supply unit to every layer of stone
The heat time of wax composite phase-change material circular layer, and then control paraffin composite phase change material in different paraffin composite phase change material circular layers
The mushy stage degree of conversion of material, the dielectric constant and magnetic conductivity that every layer of paraffin composite phase change material circular layer correspondence can be made different
Coefficient, realizes the three-dimensional dielectric constant needed for optic camouflage and the distribution of magnetic conductance rate coefficient, and then light is bypassed behind cape region,
Optical field recovers original distribution, realizes optic camouflage function.
The shape of described paraffin composite phase change material circular layer be hemisphere, cone, cosine body, positive body with cord, cylinder,
Semiellipsoid, square, cuboid or hexahedron, each paraffin composite phase change material circular layer can independent control and work；Institute
The paraffin composite phase change material circular layer stated is that porous media is added in paraffin phase change material, such as metal foam, metal beehive, stone
Ink, metallic, carbon fiber, nano-particle, polystyrene, ribbing piece, encapsulated, container encapsulation or general on encapsulation wall
Different paraffin phase change materials are combined.The width of paraffin composite phase change material circular layer is that 1 μm~10cm, thickness are 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 or nuclear energy.
Described multilayer paraffin composite phase change material circular layer is realized by Material growth technique, including electron beam evaporation, gold
Belong to organic compound chemical gaseous phase deposition, vapor phase epitaxial growth and molecular beam epitaxial method.
Beneficial effects of the present invention：Solid-liquid state of the present invention based on paraffin composite phase change material in the different circular layers of control,
The pseudo- ETL estimated time of loading of extension；In realization, using the widely used device such as electricity, light-operated switch, optic camouflage cape is significantly reduced
Complexity and cost, practical application potentiality are big.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 present invention provides a kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material, Ke Yitong
Cross outer power-up, heat, light or magnetic field to be distributed the dielectric constant and magnetic conductance rate coefficient that change chalcogenide this common materials, carry
The new technology of controllable (can ON/OFF) the stealthy cape of three-dimensional optical is realized for one kind so that system possesses simple in construction, speed
It hurry up, be easy to operation, energy consumption small, real-time and the low advantage of cost of implementation.
Brief description of the drawings
Fig. 1 (a) is based on the controllable three-dimensional optical of N layers of (N >=1) paraffin composite phase change material for one kind that the present invention is provided
Stealthy cape sectional drawing.
Fig. 1 (b) is based on the controllable three-dimensional optical of N layers of (N >=1) paraffin composite phase change material for one kind that the present invention is provided
Stealthy cape top view.
Fig. 2 (a) is internal supporting shell schematic diagram.
Fig. 2 (b) is N layers of paraffin composite phase change material circular layer schematic diagram.
Fig. 2 (c) is the stealthy cape schematic diagram of controllable three-dimensional optical.
Fig. 3 (a) is based on the controllable three-dimensional optical of N layers of (N >=1) paraffin composite phase change material for one kind that the present invention is provided
Stealthy cape opens up under state the optical field distribution feelings of (i.e. paraffin composite phase change material is under different conditions) in stealthy function
Condition.
Fig. 3 (b) is based on the controllable three-dimensional optical of N layers of (N >=1) paraffin composite phase change material for one kind that the present invention is provided
Stealthy cape under stealthy function closed mode (i.e. paraffin composite phase change material be in different conditions under) optical field distribution feelings
Condition.
In figure：1 substrate layer；2N layers of paraffin composite phase change rings of material layer surface covering circular layer (N >=1)；3 thin metal layers are pasted
Piece；4 walls；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 paraffin composite phase change material circular layer in substrate 1
Successively it is superimposed from the bottom to top with the outer surface of internal supporting shell 5, realizes N layers of paraffin composite phase change material surface covering circular layer 2, such as
Shown in accompanying drawing 2 (b).Wherein, the design of paraffin composite phase change material surface circular layer and internal supporting shell can use finite time-domain
Calculus of finite differences, FInite Element scheduling algorithm.Thin metal layer paster 3 is formed on N layers of paraffin composite phase change material list by coating process
Between the internal ring wall of face covering circular layer 2 and the outer wall of internal supporting 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 paraffin composite phase change material circular layers of supply unit, and then control different rings
The mushy stage degree of paraffin composite phase change material in layer, Jie that every layer of paraffin composite phase change material circular layer correspondence can be made different
Electric constant and magnetic conductance rate coefficient, realize the stealthy required three-dimensional dielectric constant of light and magnetic conductance rate coefficient distribution, and then make light around
Cross behind cape region, light field recovers original distribution, realizes optic camouflage function.It is final to realize that a kind of multilayer paraffin that is based on is combined
Shown in the stealthy cape of controllable three-dimensional optical of phase-change material circular layer, such as accompanying drawing 2 (c).
As shown in figure 3, when in a kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material
The generating state change of paraffin composite phase change material, its dielectric constant and the distribution of magnetic conductance rate coefficient can also change, Jin Ershi
The regulation and control of existing optical propagation direction, realize that the "ON" of optic camouflage function shields external light and make it that institute is hidden in internal supporting shell 5
Hide object not detected by the external world, i.e., light is not by changing its optical field distribution after the optic camouflage cape (shown in such as Fig. 3 (a))
It is that light is changed by its optical field distribution after the stealthy cape with "Off", causing to put in internal supporting shell 5 object can be by
The external world is detected (shown in such as 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 multilayer paraffin composite phase change material, it is characterised in that this is adjustable
Control three-dimensional optical stealthy cape and include substrate layer, it is wall, the surface covering circular layer of paraffin composite phase change material circular layer composition, attached
Thin metal layer paster, internal supporting shell, control unit and supply unit in paraffin composite phase change material circular layer inwall；Cover on surface
Bezel ring, layer is superimposed composition, each paraffin composite phase change material circular layer inwall from bottom to top for multiple paraffin composite phase change material circular layers
There is wall isolation between the equal metal clad thin layer paster in surface, each two paraffin composite phase change material circular layer；Inside support
Shell is on the inside of multilayer paraffin composite phase change material circular layer, for carrying multilayer paraffin composite phase change material circular layer, is hidden
Target is positioned over the intracavitary of internal supporting shell；Internal supporting shell is contacted with thin metal layer paster, while internal supporting shell corresponds to
It is drilled with aperture at each thin metal layer paster, small aperture is that 1 μm~1cm, depth are 1 μm~10cm；Install and lead in aperture
Line, wire one end is connected on thin metal layer paster, and the other end sequentially passes through control unit and supply unit ground connection, passes through manipulation
Control unit, can regulate and control heat time of the supply unit to every layer of paraffin composite phase change material circular layer, and then control different stones
The mushy stage degree of conversion of paraffin composite phase change material, can make every layer of paraffin composite phase change in wax composite phase-change material circular layer
Material circular layer correspondence different dielectric constant and magnetic conductance rate coefficient, realize the three-dimensional dielectric constant and magnetic conductivity needed for optic camouflage
Coefficient is distributed, and then light is bypassed behind cape region, and optical field recovers original distribution, realizes optic camouflage function.
2. the stealthy cape of controllable three-dimensional optical according to claim 1, it is characterised in that described paraffin composite phase change
The shape of material circular layer is hemisphere, cone, cosine body, positive body with cord, cylinder, semiellipsoid, square, cuboid or six
Bian Ti, each paraffin composite phase change material circular layer independent control and work；Described paraffin composite phase change material circular layer be
Add porous media in paraffin phase change material, the width of paraffin composite phase change material circular layer be 1 μm~10cm, thickness be 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
It is 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 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 paraffin composite phase change material circular layer is realized by Material growth technique, including electron beam evaporation, metallo-organic compound chemistry
Gaseous phase deposition, vapor phase epitaxial growth and molecular beam epitaxial method.
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| CN201710062113.8A CN107085317A (en) | 2017-01-31 | 2017-01-31 | A kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material |
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| CN201710062113.8A CN107085317A (en) | 2017-01-31 | 2017-01-31 | A kind of stealthy cape of controllable three-dimensional optical based on multilayer paraffin composite phase change material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108929629A (en) * | 2018-07-30 | 2018-12-04 | 四川大学 | A kind of preparation method of phase transformation Infrared stealthy materials |
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| 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 |
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| CN108929629A (en) * | 2018-07-30 | 2018-12-04 | 四川大学 | A kind of preparation method of phase transformation Infrared stealthy materials |
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