CN106094093B - A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate - Google Patents
A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate Download PDFInfo
- Publication number
- CN106094093B CN106094093B CN201610684633.8A CN201610684633A CN106094093B CN 106094093 B CN106094093 B CN 106094093B CN 201610684633 A CN201610684633 A CN 201610684633A CN 106094093 B CN106094093 B CN 106094093B
- Authority
- CN
- China
- Prior art keywords
- orthogonal cross
- silver nanorod
- nanorod structure
- wave plate
- cross silver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
Abstract
The invention discloses a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plates, are made of several periodic wave plate units, wave plate unit includes SiO2Substrate and the orthogonal cross Silver nanorod structure on the substrate, substrate is square substrate, its side length P is 800 ~ 1000nm, the height H of orthogonal cross Silver nanorod structure is 100 ~ 150nm, first width W of the orthogonal cross Silver nanorod structure is 200 ~ 300nm, second length Lx of orthogonal cross Silver nanorod structure is 550 ~ 650nm, and the second width Ly of orthogonal cross Silver nanorod structure is 150 ~ 170nm.The present invention has widened bandwidth of operation significantly, and it is higher for the tolerance of Parameters variation, due to the limitation of present micro-nano structure production precision, this is structurally reasonable, is easy to make, in optical sensor system, advanced nano-photon device and integrated optics system, there is very big application value.
Description
Technical field
The present invention relates to a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plates, are related to optical element field.
Background technique
In the prior art, polarization state is a kind of very important optical characteristics of light wave.Birefringent crystal material has along flat
Capable and vertical optical axis orthogonal direction has the characteristic of different light refractive indexes, is applied to Traditional control polarization state by wide in range
Device in.When light penetrates birefringece crystal, transmitted light can generate phase difference in that orthogonal direction, realize the conversion of polarization state.
Currently, the photoelectric component of the miniaturization demand high integration of novel industry, and conventional crystal wave plate is by physical size
Limitation, promoted the sharply development of sub-wavelength structure optical device, wherein based on surface plasma body resonant vibration sub-wavelength gold
The super surface wave plate for belonging to structure has obtained extensive attention and research.
The super super surface of surface, that is, sub-wavelength of optics refers to that a kind of thickness is less than the artificial stratified material of wavelength, it can be achieved that electricity
The flexible Effective Regulation of the characteristics such as magnetic wave phase, polarization mode, communication mode.Compared with traditional wave plate, based on super surface
Wave plate can enhance the characteristic of electromagnetic field regulation light wave on ultra-thin platform.Wave plate based on super surface generally utilizes each to different
Property resonating member array, such as nano-seam, inverted-L antenna, H-type antenna, V antenna etc.. and the wave plate based on these structures is normal
It is subjected to the limitation of narrowband.
In view of this, providing a kind of new two-dimensional metallic wave plate, solve to lead to application range in the prior art because of narrow bandwidth
Too small problem, it is clear that be necessary.
Summary of the invention
Goal of the invention of the invention is to provide a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate, solves the prior art
The problem of middle narrow bandwidth.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of sub-wavelength ultra wide band transmission-type two dimension
Metal wave plate is made of several periodic wave plate units, and the wave plate unit includes SiO2 substrate and is located on the substrate
Orthogonal cross Silver nanorod structure,
The substrate is square substrate, and side length P is 700 ~ 900nm,
The height H of the orthogonal cross Silver nanorod structure is 50 ~ 150nm,
First length of the orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W of the orthogonal cross Silver nanorod structure is 100 ~ 200nm,
Second length Lx of the orthogonal cross Silver nanorod structure is 600 ~ 750nm,
Second width Ly of the orthogonal cross Silver nanorod structure is 100 ~ 200nm.
Preferably, the substrate is square substrate, side length P=950nm, the orthogonal cross Silver nanorod structure
Height H=125nm,
First length of the orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of the orthogonal cross Silver nanorod structure,
Second length Lx=600nm of the orthogonal cross Silver nanorod structure,
Second width Ly=160nm of the orthogonal cross Silver nanorod structure.
Preferably, the substrate is square substrate, side length P=950nm, the orthogonal cross Silver nanorod structure
Height H=125nm,
First length of the orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of the orthogonal cross Silver nanorod structure,
Second length Lx=600nm of the orthogonal cross Silver nanorod structure,
Second width Ly=160nm of the orthogonal cross Silver nanorod structure.
Preferably, the substrate is square substrate, side length P=880nm, the height H of orthogonal cross Silver nanorod structure
=100nm,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of orthogonal cross Silver nanorod structure,
Second length Lx=560nm of orthogonal cross Silver nanorod structure,
Second width Ly=160nm of orthogonal cross Silver nanorod structure.
Preferably, the substrate shape is square, side length P=850nm, the height H of orthogonal cross Silver nanorod structure
=140nm,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=210nm of orthogonal cross Silver nanorod structure,
Second length Lx=630nm of orthogonal cross Silver nanorod structure,
Second width Ly=165nm of orthogonal cross Silver nanorod structure.
Preferably, when linearly polarized light incidence, polarization angle changes with the change of wavelength, so that amplitude component Ex=
Ey, and the phase mehtod of the metal wave plate remains unchanged.
Design principle of the invention is as follows: a branch of linearly polarized light passes through along the direction at 45 ° with quarter-wave plate fast axis
After quarter-wave plate, transmitted field is the odd-multiple of pi/2 along two orthogonal direction phase differences, and amplitude Ex, Ey are equal, i.e., four points
One of wave plate have and line polarisation be converted into the function of circularly polarized light.
In the design process of wave plate, by the method for control variable, every structural parameters are analyzed respectively for super table
The influence of face transmission field distribution.Metal bar is as anisotropic optical resonator, the width W of height H and vertical silver nanoparticle item
It plays a major role to the regulation of phase difference, and the thickness of metal also affects the efficiency of transmission of wave plate, and horizontal nano stick
Vertical width Ly is to the generation position sensing to resonate at shortwave.Determining metal thickness as a result, select suitable structural cycle it
Afterwards, orthogonal direction phase mehtod is regulated and controled by fine tuning Lx and W, obtains quarter-wave piece performance.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
The present invention devises a kind of novel sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate, realize it is close ~ in it is infrared
Transmission-type quarter-wave plate function within the scope of ultra wide wave band, compared with existing wave plate, two quadrature component of transmitted electric fields
In at least over an ultra of 2500nm, phase difference variation is lower than the 2% of pi/2, rather than only in two neighbouring formants
Infall, bandwidth of operation has been widened significantly, and the present invention is higher for the tolerance of Parameters variation, due to present micro-nano knot
The limitation of precision is made in structure, this is structurally reasonable, is easy to make, in optical sensor system, advanced nano-photon device and collection
At in optical system, there is very big application value.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of wave plate unit of the invention.
Fig. 3 is the top view of Fig. 2 wave plate unit.
Wavelength change that Fig. 4 is the wave plate unit transmitted light orthogonal direction amplitude of Different structural parameters in embodiment one and position accompanies
Change profiles versus's figure.
The phase and phase difference that Fig. 5 is the transmitted light of one Central Asia wavelength transmission formula two-dimensional metallic wave plate of embodiment are with incidence wave
Long change profile figure.
Fig. 6 is that incident light polarization angle is distributed along transmitance when x and the incidence of y-axis direction with wavelength change in embodiment one
Figure.
Fig. 7 be under different incident polarization angles two-dimensional metallic wave plate transmissivity with wavelength change curve graph.
The amplitude of the transmitted light of two-dimensional metallic wave plate and phase are with entering when Fig. 8 is under different incident ray polarized light polarization angles
The long change profile figure of ejected wave.
The phase and phase difference that Fig. 9 is the transmitted light of two Central Asia wavelength transmission formula two-dimensional metallic wave plate of embodiment are with incidence wave
Long change profile figure.
Figure 10 is that incident light polarization angle is divided along transmitance when x and the incidence of y-axis direction with wavelength change in embodiment two
Butut.
The phase and phase difference that Figure 11 is the transmitted light of three Central Asia wavelength transmission formula two-dimensional metallic wave plate of embodiment are with incidence
Wavelength change distribution map.
Figure 12 is that incident light polarization angle is divided along transmitance when x and the incidence of y-axis direction with wavelength change in embodiment three
Butut.
Wherein: 1, substrate；2, orthogonal cross Silver nanorod structure.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
A kind of embodiment one: shown in Figure 1, sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate, by several periodicity
Wave plate unit constitute, the structural schematic diagram of wave plate unit is shown in Figure 2, and the wave plate unit includes SiO2 substrate 1 and position
In the orthogonal cross Silver nanorod structure 2 on the substrate,
It is shown in Figure 3, it is the top view of wave plate unit, substrate shape is square, side length P=950nm, and orthogonal ten
Height H=125nm of word Silver nanorod structure,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of orthogonal cross Silver nanorod structure,
Second length Lx=600nm of orthogonal cross Silver nanorod structure,
Second width Ly=160nm of orthogonal cross Silver nanorod structure.
Preferably, incident light polarization angle, θ range is 30 ° ~ 70 °.
Above-mentioned orthogonal cross Silver nanorod structure includes that rectangular configuration is dashed forward with the rectangle for being oppositely arranged on rectangular configuration two sides
Portion out, rectangular stub are extended outwardly by the two sides of rectangular configuration, and above the first length is the length of rectangular configuration, the
One width is the width of rectangular configuration, the second length be between the outermost of the opposite rectangular stub in rectangular configuration two sides away from
From the second width is the width of rectangular stub.In the present embodiment metal wave plate between the adjacent rectangular stub in the same side
Distance is equal with the period of wave plate unit.
The present embodiment carries out modeling and simulating using Fdtd Method FDTD numerical computation method.FDTD method is by max
Time domain field vorticity equation differential expression in Wei equation group carries out differencing, obtains the finite difference equations of field component, utilization is identical
The space lattice of parameter goes simulation electromagnetic scattering.
It is shown in Figure 4, for Different structural parameters wave plate unit transmitted light orthogonal direction amplitude and position accompany wavelength change
Change profiles versus's figure.Such as Fig. 4 (a), since the shape of orthogonal nanometer rods is similar, Parameters variation is little, the two general formants
Position it is located adjacent one another, two close narrow and high transmission peaks are expressed as on transmittance graph, can only be between Liang Feng very
Small one section of wave band realizes narrowband wave plate function, can be with from Fig. 4 (b) as can be seen that as the length of vertical direction is progressively longer
Find out that quadrature exciting formant is opened, occur one section of gentle phase mehtod between two peaks, bandwidth increases.From Fig. 4 (c)
As can be seen that the formant of the vertical bars of the present embodiment is moved to far infrared band and peak height reduces, i.e. its resonance is imitated
It should die down, eliminate unwanted vertical bars and mutually disperse in the position of near-infrared.Shorten the length of horizon bar simultaneously, it is close-in
Infrared introducing position mutually disperses and the phase difference with vertical direction one continuous pi/2, by adjusting the thickness of metal, Ke Yirang
Close in parallel between the formant of two wide aparts, this effect is directly resulted in close red the phase curve of orthogonal direction
A gentle phase difference within the scope of the ultra wide wave band of wave section, the i.e. generation of ultra wide band.Wherein the divergence problem of amplitude ratio can
With by the polarization angle with wavelength shift incident light, to change the resonance point of Ex=Ey to solve.
It is shown in Figure 5, it is the phase and position phase of the transmitted light of the present embodiment Central Asia wavelength transmission formula two-dimensional metallic wave plate
Difference is shown in Figure 6 with incident wavelength change profile figure, enters for incident light polarization angle in the present embodiment along x and y-axis direction
Transmitance is with wavelength change distribution map when penetrating, from Fig. 5, Fig. 6 it can be seen that phase difference is super between 2000nm to 4500nm
In wide wave-length coverage, the phase difference variation of two quadrature component of transmitted electric fields is lower than the 2% of pi/2, and it is necessary to meet quarter-wave plate
Phase difference condition.
Shown in Figure 7, two-dimensional structure transmissivity is with wavelength change curve graph under different incident polarization angles.Because of vibration
Amplitude ratio is with wavelength dissipates, and when realizing conversion of the circularly polarized light to linearly polarized light, the electric field polarization angle of transmitted wave is diverging.It is real
When showing conversion of the line polarisation to rotatory polarization, due to the diverging of transmitted field orthogonal direction electric field component amplitude ratio, need to change with wavelength
Become the polarization angle of incident light to obtain broadband effect.That is the point of incident light polarization angulation change, Ex=Ey moves, and ties
The phase mehtod of structure remains unchanged, and simulates the incident polarization angle for showing that needs rotate and is up to 70 °.
It is shown in Figure 8, when being under different incident ray polarized light polarization angles, the amplitude of the transmitted light of two-dimensional metallic wave plate
And phase is with incident wavelength change profile figure.Wherein in Fig. 8 (a), incident light polarization angle and the angular separation x θ=50 °, the structure
Transmitted field orthogonal direction electric field component Ex=Ey at 2113nm, phase difference 1.59rad are approximately pi/2, can regard a quarter as
Wave plate, transmitance 54%；In Fig. 8 (b), incident light polarization angle and the angular separation x θ=55 °, the structure transmit at 2970nm
Field orthogonal direction electric field component Ex=Ey, phase difference is pi/2, can regard quarter-wave plate, transmitance 46% as；In Fig. 8 (c),
Incident light polarization angle and the angular separation x θ=64 °, structure transmitted field orthogonal direction electric field component Ex=Ey at 3964nm,
Phase difference 1.54rad is approximately pi/2, can regard quarter-wave plate, transmitance 32% as；In Fig. 8 (d), incident light polarization angle
Degree and the angular separation x θ=66 °, the structure transmitted field orthogonal direction electric field component Ex=Ey, phase difference at 4164nm
1.54rad is approximately pi/2, can regard quarter-wave plate, transmitance 21% as.
In conclusion the present embodiment realizes the ultra wide band transmission-type in near-to-mid infrared 2000nm ~ 4500nm wavelength band
Quarter-wave plate function, bandwidth width are at least 2500nm, in this wavelength band, the position of two quadrature component of transmitted electric fields
Difference variation is lower than the 2% of pi/2, and incident light polarization angle changes with the variation of wavelength, has effectively widened transmission-type wave plate
Bandwidth, and this structure is higher for the tolerance of Parameters variation, due to the limitation of present micro-nano structure production precision, the structure
Rationally, it is easy to make, in optical sensor system, advanced nano-photon device and integrated optics system, has very big
Application value.
Embodiment two: a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate, by several periodic wave plate unit structures
It include SiO2 substrate and the orthogonal cross Silver nanorod structure on the substrate at, wave plate unit,
Substrate shape is square, side length P=880nm, height H=100nm of orthogonal cross Silver nanorod structure,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of orthogonal cross Silver nanorod structure,
Second length Lx=560nm of orthogonal cross Silver nanorod structure,
Second width Ly=160nm of orthogonal cross Silver nanorod structure.Incident light polarization angle and the angular separation x θ=
45°。
It is shown in Figure 9, it is the phase and position phase of the transmitted light of two Central Asia wavelength transmission formula two-dimensional metallic wave plate of embodiment
Difference is with incident wavelength change profile figure, and shown in Figure 10, incident light polarization angle is along transmitance when x and the incidence of y-axis direction
With wavelength change distribution map, it can be seen that phase difference is in the over an ultra between 2200nm to 4800nm, transmitted electric fields
The phase difference variation of two quadrature components is lower than the 2% of pi/2, meets the necessary phase difference condition of quarter-wave plate, realizes ultra-wide
Band.
Embodiment three: a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate, by several periodic wave plate unit structures
It include SiO2 substrate and the orthogonal cross Silver nanorod structure on the substrate at, wave plate unit,
Substrate shape is square, side length P=850nm, height H=140nm of orthogonal cross Silver nanorod structure,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=210nm of orthogonal cross Silver nanorod structure,
Second length Lx=630nm of orthogonal cross Silver nanorod structure,
Second width Ly=165nm of orthogonal cross Silver nanorod structure.Incident light polarization angle and the angular separation x θ=
45°。
It is shown in Figure 11, it is the phase and position phase of the transmitted light of three Central Asia wavelength transmission formula two-dimensional metallic wave plate of embodiment
Difference is with incident wavelength change profile figure, and shown in Figure 12, incident light polarization angle is along transmitance when x and the incidence of y-axis direction
With wavelength change distribution map, it can be seen that phase difference is in the over an ultra between 2500nm to 5000nm, transmitted electric fields
The phase difference variation of two quadrature components is lower than the 2% of pi/2, meets the necessary phase difference condition of quarter-wave plate, realizes ultra-wide
Band.
Claims (5)
1. a kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate is made of several periodic wave plate units, feature exists
In: the wave plate unit includes SiO2Substrate and the orthogonal cross Silver nanorod structure on the substrate,
The substrate is square substrate, and side length P is 800 ~ 1000nm,
The height H of the orthogonal cross Silver nanorod structure is 100 ~ 150nm,
First length of the orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W of the orthogonal cross Silver nanorod structure is 200 ~ 300nm,
Second length Lx of the orthogonal cross Silver nanorod structure is 550 ~ 650nm,
Second width Ly of the orthogonal cross Silver nanorod structure is 150 ~ 170nm,
First length is the length of rectangular configuration, and the first width is the width of rectangular configuration, and the second length is rectangular configuration two sides
The distance between opposite outermost of rectangular stub, the second width are the width of rectangular stub.
2. sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate according to claim 1, it is characterised in that: the substrate is
Square substrates, side length P=950nm, height H=125nm of the orthogonal cross Silver nanorod structure,
First length of the orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of the orthogonal cross Silver nanorod structure,
Second length Lx=600nm of the orthogonal cross Silver nanorod structure,
Second width Ly=160nm of the orthogonal cross Silver nanorod structure.
3. sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate according to claim 1, it is characterised in that: the substrate is
Square substrates, side length P=880nm, height H=100nm of the orthogonal cross Silver nanorod structure,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=300nm of orthogonal cross Silver nanorod structure,
Second length Lx=560nm of orthogonal cross Silver nanorod structure,
Second width Ly=160nm of orthogonal cross Silver nanorod structure.
4. sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate according to claim 1, it is characterised in that: the substrate shape
Shape is square, side length P=850nm, height H=140nm of the orthogonal cross Silver nanorod structure,
First length of orthogonal cross Silver nanorod structure is equal with the side length of substrate,
First width W=210nm of orthogonal cross Silver nanorod structure,
Second length Lx=630nm of orthogonal cross Silver nanorod structure,
Second width Ly=165nm of orthogonal cross Silver nanorod structure.
5. sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate according to claim 1, it is characterised in that: work as linearly polarized light
When incident, polarization angle changes with the change of wavelength, so that amplitude component Ex=Ey, and the position phase of the metal wave plate point
Cloth remains unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684633.8A CN106094093B (en) | 2016-08-18 | 2016-08-18 | A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684633.8A CN106094093B (en) | 2016-08-18 | 2016-08-18 | A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106094093A CN106094093A (en) | 2016-11-09 |
| CN106094093B true CN106094093B (en) | 2019-01-15 |
Family
ID=58069770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610684633.8A Active CN106094093B (en) | 2016-08-18 | 2016-08-18 | A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106094093B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221362A (en) * | 2019-06-11 | 2019-09-10 | 南开大学 | Polarization optical element and image display unit |
| CN113218531B (en) * | 2021-03-05 | 2023-09-29 | 广东工业大学 | Optical fiber temperature sensor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008257133A (en) * | 2007-04-09 | 2008-10-23 | Ricoh Co Ltd | Depolarizer, optical device and image display device |
| CN204758858U (en) * | 2015-05-29 | 2015-11-11 | 苏州大学 | Reflective one -dimensional metal wave plate of inferior wavelength |
| CN105242341A (en) * | 2015-11-05 | 2016-01-13 | 苏州大学 | Super surface quarter wave plate based on surface plasmon polariton |
| CN206057624U (en) * | 2016-08-18 | 2017-03-29 | 苏州大学 | A kind of sub-wavelength ultra broadband transmission-type two-dimensional metallic wave plate |
-
2016
- 2016-08-18 CN CN201610684633.8A patent/CN106094093B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008257133A (en) * | 2007-04-09 | 2008-10-23 | Ricoh Co Ltd | Depolarizer, optical device and image display device |
| CN204758858U (en) * | 2015-05-29 | 2015-11-11 | 苏州大学 | Reflective one -dimensional metal wave plate of inferior wavelength |
| CN105242341A (en) * | 2015-11-05 | 2016-01-13 | 苏州大学 | Super surface quarter wave plate based on surface plasmon polariton |
| CN206057624U (en) * | 2016-08-18 | 2017-03-29 | 苏州大学 | A kind of sub-wavelength ultra broadband transmission-type two-dimensional metallic wave plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106094093A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Review of broadband metamaterial absorbers: from principles, design strategies, and tunable properties to functional applications | |
| CN206057624U (en) | A kind of sub-wavelength ultra broadband transmission-type two-dimensional metallic wave plate | |
| US9507064B2 (en) | Dielectric metasurface optical elements | |
| He et al. | Dual-band terahertz metamaterial absorber with polarization insensitivity and wide incident angle | |
| Li et al. | Manipulation of asymmetric transmission in planar chiral nanostructures by anisotropic loss | |
| CN108063316A (en) | Dual openings resonant ring array surpasses the reflective polarizer of surface Terahertz multi-resonant | |
| CN108063317A (en) | Surface Terahertz polarizer is surpassed based on parallel lines dipole structure chiral | |
| CN106450794B (en) | The reflective 90 degree of polarizers of the super surface Terahertz of chiral | |
| CN105103035B (en) | Include the optical diode of the component made of Meta Materials | |
| Le et al. | Transformation from 2D meta-pixel to 3D meta-pixel using auxetic kirigami for programmable multifunctional electromagnetic response | |
| CN107037507A (en) | A kind of all dielectric Meta Materials resonance device of high-quality-factor | |
| CN106094093B (en) | A kind of sub-wavelength ultra wide band transmission-type two-dimensional metallic wave plate | |
| Chen et al. | Polarization control by using anisotropic 3-D chiral structures | |
| Lin et al. | An ultra-wideband reflective phase gradient metasurface using pancharatnam-berry phase | |
| CN107238885A (en) | Metal Meta Materials wave plate | |
| Jing et al. | Design of ultrahigh refractive index metamaterials in the terahertz regime | |
| Zhang et al. | Equivalent circuit analysis of terahertz metamaterial filters | |
| CN106099387A (en) | Three frequencies tunable Graphene polarization converters of work | |
| Peters et al. | Metamaterial-inspired high-absorption surfaces for thermal infrared applications | |
| Liu et al. | Reflective triple-band line-to-circular polarization conversion based on diamond-shaped graphene metasurface | |
| CN104810628A (en) | Vane type terahertz wave broadband linear polarization device | |
| Gao et al. | Broadband unidirectional transmission realized by properties of the Dirac cone formed in photonic crystals | |
| Chen et al. | Planar terahertz metamaterial with three-resonant frequencies | |
| CN106249333B (en) | A kind of narrow-band band-elimination filter | |
| Jiang et al. | Broadband and wide angle perfect reflection by super periodic cubes metamaterials in terahertz region |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |