CN107450120A - Multi-band absorption filter based on symmetry-breaking graphene array structure - Google Patents
Multi-band absorption filter based on symmetry-breaking graphene array structure Download PDFInfo
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- CN107450120A CN107450120A CN201710714357.XA CN201710714357A CN107450120A CN 107450120 A CN107450120 A CN 107450120A CN 201710714357 A CN201710714357 A CN 201710714357A CN 107450120 A CN107450120 A CN 107450120A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 87
- 238000010521 absorption reaction Methods 0.000 title abstract 3
- 239000002245 particle Substances 0.000 claims abstract description 39
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- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- -1 graphite Alkene Chemical class 0.000 claims description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 10
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
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- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 2
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
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- Physics & Mathematics (AREA)
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Abstract
The invention discloses a multiband absorption type filter based on a symmetry-broken graphene array structure, and belongs to the field of photoelectric materials. The filter comprises a substrate and a graphene array structure layer from bottom to top in sequence, wherein the graphene array structure layer comprises a periodic array of graphene particles and an air slit composite structure. Based on the strong electromagnetic resonance effect of the graphene particles, the graphene particles are structurally cut by introducing the air slits, the positions of the slits deviate from the center positions of the particles, a particle pair structure which is separated in space and has broken symmetry is formed, electromagnetic resonance and hybrid coupling are generated, and therefore the multiband absorption type optical filtering effect is achieved. The multiband filter based on the graphene array structure layer is simple in structure, adjustable in infrared band spectral range, small in structural size, easy to integrate and capable of being widely applied to the field of composite material filters or radars.
Description
Technical field
The present invention relates to the fields such as photoelectric material and photonic propulsion, and in particular to a kind of graphene battle array based on Broken Symmetry
The multiband of array structure absorbs mode filter.
Background technology
Infrared frequency range in electromagnetic spectrum can be divided into near-infrared (0.76 μm~2.5 μm), in infrared (2.5 μm~25 μ
And three frequency ranges of far infrared (25 μm~1000 μm) m).In nature all objects can infrared radiation, by using spy
The infrared image that different Thermal Infra-Reds are formed can be obtained by surveying infrared ray difference of the instrument measurement target between background in itself.Air and
Smoke, mists and clouds etc. can absorb visible ray and near infrared ray, but be transparent to 8~14 μm of Thermal Infra-Red (in infrared frequency range).
Therefore, this frequency range is also referred to as " atmospheric window " of Thermal Infra-Red.It is in military affairs to carry out thermal infrared imaging using spectral technique
Provide advanced night-vision equipment and round-the-clock preceding viewing system.
Graphene (Graphene) is a kind of cellular flat film formed by single layer of carbon atom, and it only has an atom
The quasi- two-dimensional material of thickness degree, is called monoatomic layer graphite.Graphene have very good conduction, heat conduction, mechanical strength and
Pliability and optical characteristics, length is obtained in the field such as physics, materialogy, electronic information and computer, Aero-Space
The development of foot.The conduction electronics of graphene can interact to form couple electromagnetic mould (that is, phasmon is common with the photon of incidence
Shake), traditional optical diffraction limit can be broken through, therefore the information that can include as optical transmission apparatus in LMDS Light Coupled Device carries
Body.However, single-layer graphene structure is only 2.3% to the absorptivity of visible ray and infrared frequency range light.Current investigative technique
How Effective Regulation graphene-structured to the spectral response characteristic of light wave or electromagnetic wave include graphene-structured in different frequency range
The controllable operating of spectrum notch response etc. very big technical barrier all be present.Such as disclosed patent application [application in the recent period
Numbers 201610062949.3, the A of application publication number CN 105700201], although providing a kind of optical filter based on graphene
Part, but structure needs to be related to dielectric substrate, metal electrode, graphene band array, dielectric layer, metal grating and substrate in itself
Etc. numerous structural detail and module, it is unfavorable for the simple preparation of device and integrated application.Recent invention disclosed patent application
[application number 201611235973.9, the A of application publication number CN 106684510] discloses a kind of face of opening six based on graphene
Annular Tunable dual band wave filter, although realizing the transmission filter response of double frequency-band, the base needed for structure in Terahertz frequency range
Many construction units such as plate, opening positive six face rings shape paster, inverted U-shaped paster, reverse L-shaped paster, L-shaped paster and inverted T-shaped paster
Substantially increase the structural complexity of such wave filter, inevitably limit its device prepare with it is integrated etc.
Using.
In addition, the optical transmission structure of conventional art aspect all exists including optically filtering device, physical dimension is larger, spectrum
The deficiencies of untunable.
The content of the invention
For above-mentioned deficiency, the present invention filters to provide a kind of multiband graphene array of infrared frequency range in be operated in
Device, it is intended to introduce grapheme material, the electromagentic resonance characteristic using graphene particles, simplify construction unit and the increase of wave filter
The controllable number of frequency bands of spectrum.
The present invention is achieved through the following technical solutions：
The multiband of graphene array structure based on Broken Symmetry absorbs mode filter, and it includes substrate, graphene
Array structure layer, it is characterised in that：It is made up of successively substrate and graphene array structure sheaf from bottom to top, the graphene array
Structure sheaf is made up of graphene particles and the cyclic array of air slots composite construction.The present invention is had based on graphene particles
Some forceful electric power magnetic resonance effects, realized by introducing air slots to the cutting in graphene particles progress structure and the position of slit
Skew granular center position is put, formation is spatially separating and the particle of Broken Symmetry is to structure, produces electromagentic resonance and hydridization coupling
Close, so as to realize multiband absorption-type optically filtering effect.
The structural symmetry of the graphene particles and air slots composition breaks the periodicity battle array of scarce graphene particles pair
Row pattern is arranged on substrate top surface.
The structure of the graphene particles is cylindrical structural.
The graphene array thickness degree is in 0.34nm~1nm scopes.
The material of the substrate is the materials such as glass, flexible material such as dimethyl silicone polymer and polymer.
The multiband absorption-type filter construction of the graphene array structure based on Broken Symmetry can pass through physics
Sedimentation, which includes ion sputtering process and magnetron sputtering method and lithographic technique, includes electron beam and laser etching techniques etc. to prepare.
The multiband of the graphene array structure based on Broken Symmetry of the present invention absorbs mode filter with following excellent
Point：
1st, by using resonance coupling unit of the graphene array structure as mid-infrared light, the graphene of Broken Symmetry is utilized
Particle provides structure strong optical scattering and forms different resonance hybrid patterns, realizes multiband filter effect.
2nd, by using graphene array structure, it is achieved thereby that the optically filtering response on nanoscale thickness, fundamentally
Overcome that the physical dimension that conventional optical setup faced is big, is unfavorable for the built in problems such as High Density Integration.
3rd, infrared graphene array filtering spectrum scope generation infrared frequency range in multiband of the invention, i.e. Thermal Infra-Red
" atmospheric window ", be advantageous to the application for including thermal infrared imaging etc. in spectral technique.
4th, it is simple in construction, it is easy to prepare, is easy to carry out the system integration with other photoelectric devices.
5th, the optical resonance characteristic based on graphene array structure, it is easy to carry out the tuning of spectrum, produces in that infrared frequency range can
The optical filtration characteristic of tuning, all have in fields such as infrared acquisition, opto-electronic conversion, infrared imaging and heat radiators extensive
Application prospect.
Brief description of the drawings
Present disclosure is further described below in conjunction with the accompanying drawings.But the following drawings is only the ideal of the present invention
Change the schematic diagram of embodiment, wherein in order to clearly show the structure of device involved by the present invention, to wherein selected graphene battle array
The thickness and air slots width in array structure layer region have carried out appropriate amplification, but it should not be considered as sternly as schematic diagram
Lattice reflect the proportionate relationship of physical dimension.In addition, the embodiment shown in the present invention also should not be considered limited to institute in figure
The given shape in the region shown.In general, the following drawings is schematical that should not be considered as limiting the scope of the invention.
Fig. 1 is that the multiband of the graphene array structure based on Broken Symmetry in the present invention absorbs the structure of mode filter
Schematic diagram；
Fig. 2 is in the multiband absorption-type filter construction of the graphene array structure based on Broken Symmetry in the present invention
Air slots carry out structure cutting in graphene particles and the position skew granular center position of slit is divided so as to form space
From and Broken Symmetry particle to the schematic diagram of structure；
Fig. 3 is that the multiband of the graphene array structure based on Broken Symmetry in an optional embodiment of the invention absorbs
The light absorbs figure of mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of 400nm,
Thickness is 1nm, and array period size is 600nm, and the width of air slots is 40nm, length 400nm, the array of air slots
Cycle size is 600nm, slit location skew granular center position δ=60nm.Substrate is PDMS membrane layer, thickness
For 500nm.
Fig. 4 is that the multiband of the graphene array structure based on Broken Symmetry in an optional embodiment of the invention absorbs
The light absorbs figure of mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of 400nm,
Thickness is 1nm, and array period size is 600nm, and the width of air slots is 20nm, length 400nm, the array of air slots
Cycle size is 600nm, slit location skew granular center position δ=60nm.Substrate is polystyrene film layer, and thickness is
500nm。
Fig. 5 is that the multiband of the graphene array structure based on Broken Symmetry in an optional embodiment of the invention absorbs
The light absorbs figure of mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of 400nm,
Thickness is 1nm, and array period size is 600nm, and the width of air slots is 10nm, length 400nm, the array of air slots
Cycle size is 600nm, slit location skew granular center position δ=60nm.Substrate is poly- silica coating, and thickness is
500nm。
Marked in figure：1st, graphene particles, 2, air slots, 3, substrate.
Embodiment
Technical scheme is described further with reference to embodiment, but is not limited thereto, it is every to this
Inventive technique scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, all should cover
In protection scope of the present invention.
As shown in figure 1, a kind of multiband of graphene array structure based on Broken Symmetry absorbs mode filter, under
Substrate 3, graphene array structure sheaf are set gradually on and, the graphene array structure sheaf is narrow by graphene particles 1 and air
The composition of seam 2；The graphene particles 1 have forceful electric power magnetic resonance effect, realize to enter graphene particles 1 by introducing air slots
The position skew granular center position of cutting and slit in row structure, formation is spatially separating and the particle of Broken Symmetry is to knot
Structure, produce electromagentic resonance and coupled with hydridization, so as to realize multiband absorption-type optically filtering effect.The present invention is based on graphene
Forceful electric power magnetic resonance effect possessed by grain, as shown in fig.2, being realized by introducing air slots to graphene particles progress structure
On cutting and slit position skew granular center position, formation is spatially separating and the particle of Broken Symmetry is to structure.Stone
Black alkene particle is cylindrical structural, and array arranges to be square.
Aforesaid substrate 3 can be selected but be not limited to the hard such as glass, or the flexible substrate such as plastics, polymer, for supporting stone
Black alkene array.
As one of preferred embodiment, foregoing graphites alkene particle 1 is arranged and formed by cylindrical graphite alkene resonating member
Periodic lattice structure.
Technical scheme is described in detail with reference to some preferred embodiments and relevant drawings：
Embodiment 1：It is the multifrequency of graphene array structure of the present embodiment based on Broken Symmetry shown in Fig. 3 refering to Fig. 3
With the light absorbs figure for absorbing mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of
400nm, thickness 1nm, array period size are 600nm, and the width of air slots is 40nm, length 400nm, air slots
Array period size be 600nm, slit location skew granular center position δ=60nm.Substrate is PDMS membrane
Layer, thickness 500nm.It can be drawn from figure, three absworption peaks occurs in infrared frequency range in.It it is 10.512 microns in wavelength
Place presents the absorption-type filter effect of first frequency band, and absorptivity has reached 0.437.This explanation is in technical solution of the present invention
In, although wave filter only has the thick graphene layer structures of 1nm, realize the absorption-type spectroscopy filter of the mid-infrared light more than 43%
Ripple.The absworption peak of second frequency band, absorptivity 0.452 are presented at wavelength is 12.042 micron.It is 13.148 in wavelength
The absworption peak of the 3rd frequency band, absorptivity 0.460 are presented at micron.Illustrate in technical solution of the present invention, pair thick 1nm
The broken scarce graphene layer structure of title property realizes the absorption-type spectroscopy filtering of the mid-infrared light of multiband simultaneously.
Embodiment 2：It is the multifrequency of graphene array structure of the present embodiment based on Broken Symmetry shown in Fig. 4 refering to Fig. 4
With the light absorbs figure for absorbing mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of
400nm, thickness 1nm, array period size are 600nm, and the width of air slots is 20nm, length 400nm, air slots
Array period size be 600nm, slit location skew granular center position δ=60nm.Substrate is polystyrene film layer, thickness
For 500nm.It is upper it can be found that three absworption peaks occurs in infrared frequency range in from figure.It is to be presented at 10.604 microns in wavelength
The absorption-type filter effect of first frequency band, absorptivity have reached 0.379.It is to present second at 12.312 microns in wavelength
The absworption peak of individual frequency band, absorptivity 0.494.It is the absworption peak that the 3rd frequency band is presented at 13.740 microns in wavelength, inhales
Yield is 0.441.Illustrate in technical solution of the present invention, Broken Symmetry graphene layer structure thick 1nm realizes more simultaneously
The absorption-type spectroscopy filtering of the mid-infrared light of frequency band.Comparative example 1, it is found that by an easy structure regulating,
Air slots width in filter construction is reduced to 20nm, realizes multiband absorption-type filter response in middle infra-red range
Spectral tuning.
Embodiment 3：It is the multifrequency of graphene array structure of the present embodiment based on Broken Symmetry shown in Fig. 5 refering to Fig. 5
With the light absorbs figure for absorbing mode filter.Graphene array thickness degree is 1nm, and graphene particles are cylindrical structural, a diameter of
400nm, thickness 1nm, array period size are 600nm, and the width of air slots is 10nm, length 400nm, air slots
Array period size be 600nm, slit location skew granular center position δ=60nm.Substrate is poly- silica coating, thick
Spend for 500nm.It is upper it can be found that three absworption peaks occurs in infrared frequency range in from figure.It is to be at 10.534 microns in wavelength
The absorption-type filter effect of first frequency band is showed, absorptivity has reached 0.316.It is that the is presented at 12.629 microns in wavelength
The absworption peak of two frequency bands, absorptivity 0.477.It is the absworption peak that the 3rd frequency band is presented at 14.325 microns in wavelength,
Absorptivity is 0.349.Illustrate in technical solution of the present invention, Broken Symmetry graphene layer structure thick 1nm realizes simultaneously
The absorption-type spectroscopy filtering of the mid-infrared light of multiband.Comparative example 2, it is found that by the sky in filter construction
Gas slit width is reduced to 10nm, realizes spectral tuning of the multiband absorption-type filter response in middle infra-red range.
Claims (6)
1. a kind of multiband of graphene array structure based on Broken Symmetry absorbs mode filter, it includes substrate and graphite
Alkene array structure layer, it is characterised in that：It is made up of successively substrate and graphene array structure sheaf from bottom to top, the graphene battle array
Array structure layer is made up of graphene particles and the cyclic array of air slots composite construction；Based on possessed by graphene particles
Forceful electric power magnetic resonance effect, realize that the position of the cutting and slit that are carried out to graphene particles in structure is inclined by introducing air slots
Granular center position is moved, formation is spatially separating and the particle of Broken Symmetry couples to structure, generation electromagentic resonance with hydridization, from
And realize multiband absorption-type optically filtering effect.
2. the multiband of the graphene array structure according to claim 1 based on Broken Symmetry absorbs mode filter,
It is characterized in that：The cyclic array pattern of the graphene particles composition is arranged on substrate top surface.
3. the multiband of the graphene array structure according to claim 1 based on Broken Symmetry absorbs mode filter,
It is characterized in that：The graphene particles are made up of to structure graphene particles and air slots composite construction.
4. the multiband of the graphene array structure according to claim 1 based on Broken Symmetry absorbs mode filter,
It is characterized in that：The structure of the graphene particles is cylindrical structure.
5. the multiband of the graphene array structure according to claim 1 based on Broken Symmetry absorbs mode filter,
It is characterized in that：The graphene array is tetragonal lattice.
6. the multiband of the graphene array structure according to claim 1 based on Broken Symmetry absorbs mode filter,
It is characterized in that：The material of the substrate is glass or flexible material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227060A (en) * | 2018-01-26 | 2018-06-29 | 厦门大学 | A kind of method of the enhancing without nano-patterning graphene UV Absorption |
| CN110703371A (en) * | 2019-10-14 | 2020-01-17 | 江西师范大学 | Semiconductor super-surface electromagnetic wave absorber and preparation method thereof |
| CN112255716A (en) * | 2020-11-24 | 2021-01-22 | 江南大学 | Efficient light absorption device based on structural symmetry defect and preparation method and application thereof |
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| WO2014152509A1 (en) * | 2013-03-15 | 2014-09-25 | Solan, LLC | Plasmonic device enhancements |
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| CN105700201A (en) * | 2016-01-30 | 2016-06-22 | 中南林业科技大学 | Optical filter based on graphene |
| CN106711271A (en) * | 2017-02-03 | 2017-05-24 | 江西师范大学 | Three-band near-infrared absorber based on semiconductor super-surface structure |
| CN106784030A (en) * | 2017-02-03 | 2017-05-31 | 江西师范大学 | Multi-band perfect light absorber based on metal film layer-semiconductor resonant cavity composite structure |
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| WO2014152509A1 (en) * | 2013-03-15 | 2014-09-25 | Solan, LLC | Plasmonic device enhancements |
| CN104916885A (en) * | 2015-04-24 | 2015-09-16 | 天津理工大学 | Device generating terahertz radiation based on excitation, by electronic beam, of graphene |
| CN105338798A (en) * | 2015-11-24 | 2016-02-17 | 黄山学院 | Infrared band adjustable dual-frequency/tri-frequency graphene metamaterial absorption device and application method thereof |
| CN105700201A (en) * | 2016-01-30 | 2016-06-22 | 中南林业科技大学 | Optical filter based on graphene |
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| CN108227060A (en) * | 2018-01-26 | 2018-06-29 | 厦门大学 | A kind of method of the enhancing without nano-patterning graphene UV Absorption |
| CN110703371A (en) * | 2019-10-14 | 2020-01-17 | 江西师范大学 | Semiconductor super-surface electromagnetic wave absorber and preparation method thereof |
| CN112255716A (en) * | 2020-11-24 | 2021-01-22 | 江南大学 | Efficient light absorption device based on structural symmetry defect and preparation method and application thereof |
| CN112255716B (en) * | 2020-11-24 | 2021-12-28 | 江南大学 | Efficient light absorption device based on structural symmetry defect and preparation method and application thereof |
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