CN110244474A - It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface - Google Patents
It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface Download PDFInfo
- Publication number
- CN110244474A CN110244474A CN201910341833.7A CN201910341833A CN110244474A CN 110244474 A CN110244474 A CN 110244474A CN 201910341833 A CN201910341833 A CN 201910341833A CN 110244474 A CN110244474 A CN 110244474A
- Authority
- CN
- China
- Prior art keywords
- angular momentum
- light
- superposition state
- orbital angular
- super surface
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials
-
- 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
- G02F1/01—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 intensity, phase, polarisation or colour
- G02F1/0136—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 intensity, phase, polarisation or colour for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Polarising Elements (AREA)
Abstract
Controllable light track angular momentum superposition state generator is polarized based on super surface the present invention is to provide a kind of.It is characterized in that: it is made of cylindrical dipole array 1, silica substrate 2.The light track angular momentum superposition state generator carries out phase-modulation to plane of incidence light, it is made to become orbital angular momentum superposition state light.There is a flat section in the orbital angular momentum spectrum of the superposition state light, the orbital angular momentum mode quantity in flat section may be up to the variation of the relative power between tens of ranks and each mode less than 3dB.In addition, the orbital angular momentum spectrum of gained superposition state is separated from each other by left-handed and dextrorotation two different circular polarization states of control incident light, therefore the present invention is that light polarization is controllable.The present invention has many advantages, such as that polarization is controllable, easy of integration, it can be used as minisize track angular momentum superposition state generator, integrated orbital angular momentum modulation device, it can also be used to the fields such as the orbital angular momentum multiplex broadcasting of integrated chip and the light manipulation based on orbital angular momentum.
Description
(1) technical field
Controllable light track angular momentum superposition state generator is polarized based on super surface the present invention relates to a kind of, can be used as
Minisize track angular momentum superposition state generator, integrated orbital angular momentum modulation device, it can also be used to the track angle of integrated chip
Momentum multiplex broadcasting and the light manipulation based on orbital angular momentum etc., belong to light regulation and control field.
(2) background technique
Super surface is a kind of New Two Dimensional periodicity artificial material with sub-wavelength structure, in the vibration of Partial controll light beam
Width, phase and polarization etc. provide superior characteristic, and the phase discontinuity regulation having is a kind of effective wavefront
Control means, super very thin and the characteristic for being easy to make make super surface platform be very suitable to device miniaturization and system collection
At.Photon angular momentum is classified as spin angular momentaum (SAM) and light track angular momentum (OAM), and SAM is derived from the circular polarization state of light,
OAM is then related to the helical phase structure of light beam.OAM light (also referred to as vortex light) has helical phase wavefrontWhereinIt is azimuth, l is topological charge.Nearly two during the last ten years, and OAM light is due to having unique physical property by scientific research personnel's
Greatly concern.Up to now, OAM light has been widely used in high capacity optical communication, optical control and quantum information etc.
Field.
Due to the extensive use of OAM light, generates and control technology is particularly significant.People often use space light modulation at present
Device, Q-plate and spiral phase plate etc. generate OAM light.In terms of the generation of OAM light, most of researchs before this are concentrated
How light with single OAM state is being generated, and it is then few about the research for generating OAM superposition state light.However, grinding in recent years
Study carefully and shows no matter the light of OAM superposition state all has important application value in classical physics or quantum sciences.Such as: OAM
Superposition state be the key that OAM multiplexed communications (Hui X, Zheng S, Chen Y, et al.Scientific Reports, 2015,
5:10148.)；OAM superposition state light more potentiality (Wang F X, Wu J, Chen W, et al.Optics in light manipulation
Letters,2017,43(2):349-352.)；Weight is equal and topological charge be respectively+1 and -1 two beam OAM light superposition
Can be formed vector beam (Aadhi A, Vaity P, Chithrabhanu P, et al.Applied Optics, 2016,55
(5):1107.)；In addition, the controllable formation atom rotation of the superposition state of more OAM modes in the research of color of wave einstein condensation
State any superposition state (Shi S, Ding D S, Yu Y C, et al.Physical Review A, 2018,97 (6):
063847.).Therefore, the effective generation and control of OAM superposition state light are same particularly significant.Current this kind of light beam can pass through spiral
Phase-plate (Oemrawsingh S S R, Houwelingen J A W V, et al.Applied Optics, 2004,43 (3):
688-94.), (Marrucci L.Physical Review Letters, 2006,96 (16): 163905.), special Q-plate
Design super surface (Yue F, Wen D, Zhang C, et al.Advanced Materials, 2017,29 (15):
1603838.), integrated angular momentum grating (Li J B, Liang S, Xiao S, et al.Optics Express, 2016,24
(3): 2360.), spatial light modulator generate hologram (Gibson G, Courtial J, Vasnetsov M, et
Al.Optics Express, 2004,12 (22): 5448-5456.) etc. generate.However these devices all have respective office
It is sex-limited.However these devices all have respective limitation.Such as: spiral phase plate and Q-plate can only generally generate carrying
The light of a small amount of OAM mode；Although spatial light modulator can effectively generate the light of OAM superposition state, its volume is larger, Wu Fayong
In the integrated device that manufacture is integrated on micro-nano chip；The super surface on the super surface of special designing and integrated angular momentum grating one
As can only equally generate a small amount of OAM mode superposition state light, with the increase of OAM mode quantity, structure design will become extremely
It is complicated.Patent (Chinese patent: 201810115485.7) and paper (Liu H, Teng C, Yang H, et al.Optics
Express, 2018,26 (11): discovery, secondary power refer to that phase vortex light beam can be expanded as a series of power in 14792.)
The superposition of the master screw phase vortex of approximately equal (changed power is less than 3dB), devises a kind of generate with flat accordingly
The phase-plate of the OAM superposition state of power spectrum.The phase-plate has many advantages, such as that structure is simple, can integrate, and can effectively generate
OAM pattern count is up to the OAM superposition state of tens of ranks.However, the phase-plate does not have adjustability, once that is, prepared by phase-plate
At the OAM superposition state of generation is just determined.This does not meet demand of the current people to high flexible tunable devices.Therefore, it mentions
A kind of structure is simple out, can integrate, and has tunability, and can generate the generation of the OAM superposition state with flat power spectrum
Device can make up for it the deficiencies in the prior art, have a very important significance.
(3) summary of the invention
The purpose of the present invention is to provide it is a kind of it is simple and compact for structure, be easily integrated, practical inclined based on super surface
The light track angular momentum superposition state generator for shaking controllable.
The object of the present invention is achieved like this:
It is a kind of to polarize controllable light track angular momentum superposition state generator (hereinafter referred to as generator) based on super surface.It is special
Sign is: it is made of cylindrical dipole array 1, silica substrate 2.The light track angular momentum superposition state generator can be right
Plane of incidence light, which carries out phase-modulation, makes it become orbital angular momentum superposition state light.The orbital angular momentum of the superposition state light, which is composed, to be existed
One flat section, the orbital angular momentum mode quantity in flat section may be up to the change of the relative power between tens of ranks and each mode
Change and is less than 3dB.In addition, the orbital angular momentum spectrum of gained superposition state is to divide each other by controlling different circular polarization incident states
From, therefore the present invention is that light polarization is controllable.
Each column by rationally designing the structural parameters of cylindrical dipole in cylindrical dipole array 1, on super surface
Shape dipole is all equivalent to a half wave plate, it can convert incident circularly polarized light to its orthogonal circular polarizations state
Light assigns light field additional 2 σ θ of phase at the same time, and wherein σ=1 (- 1) corresponding left (right side) rounding polarized incident light situation, θ are
The rotation angle of cylindrical dipole (see Fig. 2).
When the azimuth of θ and cylindrical dipole positionMeetRelationship when, enter
Penetrate lightBy generator, optical output field be may be expressed as:
WhereinFor circular polarization unit vector, E0For optical field amplitude,For azimuth, M is a nondimensional constant, α
It is a variable angle.Formula (1) can expand into the superposition of series of standards helical phase vortex light, therefore emergent light is
OAM superposition state light, orbital angular momentum mould of the orbital angular momentum spectrum of the superposition state light there are a flat section, in flat section
Formula quantity may be up to the variation of the relative power between tens of ranks (mode quantity is determined by the value of M) and each mode and be less than 3dB.
When input light is left circularly polarized light (σ=1), emergent light obtains phaseWhen defeated
When entering light right-circularly polarized light (σ=- 1), emergent light obtains phaseIf α ≠ π, two kinds of differences
Emergent light OAM spectrum under incident polarisation state is partially separated, therefore the generator is that polarization is controllable.
Cylindrical dipole in the generator cylindrical dipole array 1 is high by dielectric constant and low material system is lost
It is standby to form, amorphous silicon, silicon nitride, gallium phosphide or titanium dioxide can be selected.
The structure of cylindrical dipole in the generator cylindrical dipole array 1 can be elliptic cylindrical shape, polygon column
Shape.
The beneficial effects of the present invention are: controllable light track angular momentum is polarized based on super surface the present invention provides a kind of
Superposition state generator.Rail of the OAM spectrum for the OAM superposition state that the generator generates there are a flat section, in flat section
Road angular momentum mode quantity may be up to the variation of the relative power between tens of ranks and each mode and be less than 3dB.In addition, the generator is inclined
It shakes controllable, easy of integration.The present invention can be used as minisize track angular momentum superposition state generator, integrated orbital angular momentum modulator
Part, it can also be used to the fields such as the orbital angular momentum multiplex broadcasting of integrated chip and the light manipulation based on orbital angular momentum.
(4) Detailed description of the invention
Fig. 1 is the schematic diagram of generator, is made of cylindrical dipole array 1, silica substrate 2, and wherein h is that column is even
Extremely sub height.
Fig. 2 is the top view of column dipole structure in generator cylindrical dipole array 1, and θ is that its long axis direction is opposite
In the rotation angle of x-axis direction, s is the short axle of cylindrical dipole, and W is the long axis of cylindrical dipole.
Fig. 3 is the operation principle schematic diagram of generator, circularly polarized light in figureIt is incident on generator, emergent light obtains
Phase factor and become its orthogonal state circularly polarized light
Fig. 4 (a) is α=0, the OAM spectrum of OAM superposition state when M=59, and 4 (b) be α=pi/2, OAM superposition when M=59
The OAM of state is composed, and 4 (c) be α=0, the OAM spectrum of OAM superposition state when M=80, and 4 (d) be α=pi/2, OAM superposition when M=80
The OAM of state is composed, and wherein * marks the incident light situation that curve corresponds to Left-hand circular polarization, and+mark curve corresponds to entering for right-hand circular polarization
Penetrate light situation.
(5) specific embodiment
Below with reference to specific embodiment, the present invention is further explained.
Controllable light track angular momentum superposition state generator, such as Fig. 1 are polarized based on super surface the present invention is to provide a kind of
It is shown.
The design procedure of the generator is as follows: (1) operation wavelength and OAM superposition at specific α, for generator
Structural parameters of cylindrical dipole in cylindrical dipole array 1, each are determined by calculation in the OAM mode quantity needed in state
The angle θ of cylindrical dipole and the value of M；(2) according to the parameter being calculated, focused-ion-beam lithography FIB manufacturing process is utilized
Prepare generator.
Such as in the present embodiment, we choose 670nm as effective operation wavelength, and consider the structure of cylindrical dipole
It is elliptic cylindrical shape, the structural parameters of one group of cylindrical dipole can be calculated under this condition, is short axle s=110nm, long axis respectively
W=280nm, high h=370nm (Fig. 1 and 2 is shown in the definition of parameter s, W, h).
The working principle of the generator is as follows: incident light(whereinWithRespectively indicate left-handed and dextrorotation
Circular polarization unit vector) generator is impinged perpendicularly on by phase-modulation, optical output field becomes (as shown in Figure 3)
Formula (1) can expand into the superposition of series of standards helical phase vortex light, therefore be OAM superposition state light.Its
In N rank be vortexed the OAM mode of N (topological charge values be) relative power (relative to incident optical power Pin=| E0|2) are as follows:
P (N)=| F (N) |2 (2)
For N rank Fourier coefficients.When M takes value appropriate, the power spectrum of the OAM superposition state is opposite there are one
Changed power is less than the flat section of 3dB.The topological charge values of the center OAM mode in the flat section can be moved with the variation of α
Dynamic, as α=π, the topological charge values of center OAM mode are 0, and as α ≠ π, the topological charge values of center OAM mode will deviate from 0.By
Two kinds of complex conjugate forms of formula (1) are respectively corresponded in σ=1 and σ=- 1, the angular momentum spectrum in the case of σ=1 and two kinds of σ=- 1
About the bilateral symmetry of topological charge 0, the then necessarily part point each other of angular momentum spectrum when α ≠ π in the case of σ=1 and two kinds of σ=- 1
From, this causes the present invention to have polarization controllability.Fig. 4 (a) is α=0, and the OAM spectrum of OAM superposition state when M=59,4 (b) are
The OAM of OAM superposition state when α=pi/2, M=59 is composed；4 (c) be α=0, and the OAM spectrum of OAM superposition state when M=80,4 (d) be α
=pi/2, the OAM spectrum of OAM superposition state when M=80, wherein * mark curve correspond to Left-hand circular polarization incident light situation (σ=
1) ,+mark curve corresponds to the incident light situation (σ=- 1) of right-hand circular polarization.By figure it can be seen that the power spectrum of OAM superposition state is deposited
It is less than the flat section of 3dB in a relative power variation, the OAM pattern count in flat section can achieve tens of ranks, in addition
As α=0, the angular momentum spectrum in the case of σ=1 and two kinds of σ=- 1 is kept completely separate.
It is as shown in Figure 1 embodiment generator schematic diagram provided by the present invention, the cylindrical dipole in figure is cylindroid
Shape structure, but this is only a kind of preferred embodiment cannot limit interest field of the invention with this.The column is even
Extremely son is also possible to polygon column structure.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and what has been described in the above embodiment and specification is only the principle of the present invention,
Without departing from the spirit and scope, various changes and improvements may be made to the invention, these changes and improvements are all fallen
Enter in scope of the claimed invention.The claimed scope of the invention is defined by the following claims.
Claims (6)
1. a kind of polarize controllable light track angular momentum superposition state generator based on super surface.It is by cylindrical dipole array 1, two
Silicon base 2 is aoxidized to form.The light track angular momentum superposition state generator, which can carry out phase-modulation to incident light, makes its acquisition
Phase factorWherein σ is that (σ=+ 1 and -1 respectively corresponds the left-handed of incident light to spin quantum number
With two kinds of circular polarization states of dextrorotation),For azimuth, M is a nondimensional constant, and α is a variable angle, to go out
It penetrates light and becomes orbital angular momentum superposition state light.The invention is characterized in that by designing M value appropriate, gained orbital angular momentum is folded
A flat section can be had by adding the orbital angular momentum of state light to compose, and the orbital angular momentum mode quantity in flat section up to counts
Relative power variation between ten ranks and each mode is less than 3dB；In addition, by design α ≠ π, different circular polarization (left-handed and dextrorotation two
Kind of circular polarization) incident light situation under, the orbital angular momentum spectrum of gained orbital angular momentum superposition state is the (α being partially separated each other
It is kept completely separate when=0), therefore the present invention has polarization controllability.
2. according to claim 1 polarize controllable light track angular momentum superposition state generator, feature based on super surface
It is cylindrical dipole in the cylindrical dipole array 1 is higher by dielectric constant and the lower dielectric material preparation of loss
It forms, selected materials can be amorphous silicon, silicon nitride, gallium phosphide or titanium dioxide.
3. according to claim 1 polarize controllable light track angular momentum superposition state generator, feature based on super surface
It is that the structure of the cylindrical dipole in the cylindrical dipole array 1 can be elliptic cylindrical shape, polygon column.
4. according to claim 1 polarize controllable light track angular momentum superposition state generator, feature based on super surface
The relative rotation angle θ for being the symmetry axis of the cylindrical dipole in the cylindrical dipole array 1 and cylindrical dipole institute are in place
The azimuth set meets relationship
5. according to claim 1 polarize controllable light track angular momentum superposition state generator, feature based on super surface
It is that the value of constant M determines the orbital angular momentum mould in the orbital angular momentum spectrum of gained orbital angular momentum superposition state light in flat section
Formula quantity, therefore the value of M is designed based on required orbital angular momentum mode quantity.
6. according to claim 1 polarize controllable light track angular momentum superposition state generator, feature based on super surface
It is that the value of angle [alpha] determines under the incident light situation of different circular polarization (left-handed and two kinds of circular polarization of dextrorotation), gained orbital angular momentum
The separation degree of the orbital angular momentum spectrum of superposition state, is kept completely separate, therefore the value of α is according to required two kinds of different polarizations as α=0
The separation degree of condition of incidence inferior horn momentum spectra designs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341833.7A CN110244474A (en) | 2019-04-25 | 2019-04-25 | It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341833.7A CN110244474A (en) | 2019-04-25 | 2019-04-25 | It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110244474A true CN110244474A (en) | 2019-09-17 |
Family
ID=67883390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910341833.7A Pending CN110244474A (en) | 2019-04-25 | 2019-04-25 | It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110244474A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909566A (en) * | 2021-01-20 | 2021-06-04 | 成都第三象限未来科技有限公司 | Multifunctional vortex stack state generator |
| CN113203486A (en) * | 2021-05-14 | 2021-08-03 | 中国人民解放军战略支援部队航天工程大学 | One-time measurement method for symmetric superposition vortex rotation based on phase shift technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065418A (en) * | 2014-06-05 | 2014-09-24 | 华中科技大学 | Integrated orbital angular momentum mode transmitter |
| CN108649341A (en) * | 2018-04-13 | 2018-10-12 | 复旦大学 | The bessel beam excitation apparatus on super surface is transmitted based on geometry Bell's phase |
| CN109100870A (en) * | 2018-10-10 | 2018-12-28 | 中国科学院上海技术物理研究所 | The multichannel of full dielectric substance focuses vortex beams generator and preparation method |
| CN109407353A (en) * | 2018-11-28 | 2019-03-01 | 深圳大学 | Polarization independent type orbital angular momentum modulator and preparation method thereof |
| CN109459870A (en) * | 2018-07-04 | 2019-03-12 | 北京理工大学 | Multichannel vector holographic palarization multiplexing method based on the super clever surface of birefringent medium |
-
2019
- 2019-04-25 CN CN201910341833.7A patent/CN110244474A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065418A (en) * | 2014-06-05 | 2014-09-24 | 华中科技大学 | Integrated orbital angular momentum mode transmitter |
| CN108649341A (en) * | 2018-04-13 | 2018-10-12 | 复旦大学 | The bessel beam excitation apparatus on super surface is transmitted based on geometry Bell's phase |
| CN109459870A (en) * | 2018-07-04 | 2019-03-12 | 北京理工大学 | Multichannel vector holographic palarization multiplexing method based on the super clever surface of birefringent medium |
| CN109100870A (en) * | 2018-10-10 | 2018-12-28 | 中国科学院上海技术物理研究所 | The multichannel of full dielectric substance focuses vortex beams generator and preparation method |
| CN109407353A (en) * | 2018-11-28 | 2019-03-01 | 深圳大学 | Polarization independent type orbital angular momentum modulator and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| ROBERT CHARLES DEVLIN等: "Spin-to-orbital angular momentum conversion in dielectric metasurfaces", 《OPTICS EXPRESS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909566A (en) * | 2021-01-20 | 2021-06-04 | 成都第三象限未来科技有限公司 | Multifunctional vortex stack state generator |
| CN112909566B (en) * | 2021-01-20 | 2022-06-14 | 成都第三象限未来科技有限公司 | Multifunctional vortex stack state generator |
| CN113203486A (en) * | 2021-05-14 | 2021-08-03 | 中国人民解放军战略支援部队航天工程大学 | One-time measurement method for symmetric superposition vortex rotation based on phase shift technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fan et al. | Independent amplitude control of arbitrary orthogonal states of polarization via dielectric metasurfaces | |
| Wen et al. | Geometric metasurfaces for ultrathin optical devices | |
| Guo et al. | Three dimensional photonic Dirac points in metamaterials | |
| CN105242521B (en) | A kind of device and method for realizing miniature CPT atomic clocks physical system | |
| Zhang et al. | Topological insulators in three dimensions from spontaneous symmetry breaking | |
| CN110244474A (en) | It is a kind of to polarize controllable light track angular momentum superposition state generator based on super surface | |
| Chakraborty et al. | Controllable continuous evolution of electronic states in a single quantum ring | |
| CN112379514B (en) | Polarization-independent superlens and design method thereof | |
| Galvez | Light beams with spatially variable polarization | |
| CN106099387B (en) | The graphene polarization converter that three frequencies work is tunable | |
| CN205844667U (en) | Nano-device based on Graphene metal clad layer structure | |
| Cueff et al. | Tailoring the local density of optical states and directionality of light emission by symmetry breaking | |
| CN110058432A (en) | A kind of relative power variation is less than the light track angular momentum superposition state generator of 1dB | |
| CN107085309A (en) | The method that a variety of high power post vector light beams are produced based on a helicon sheet | |
| Zhang et al. | The calculation of photoelectron angular distributions with jet-like structure from scattering theory | |
| CN114236817B (en) | Design method of multi-focus super surface based on vortex beam orbital angular momentum | |
| CN112327475A (en) | Geometric phase control method and system based on dielectric super-surface structure | |
| Lu et al. | Magnon band topology in spin-orbital coupled magnets: classification and application to $\alpha $-RuCl $ _3$ | |
| Schultz et al. | Creating full-Bloch Bose–Einstein condensates with Raman q-plates | |
| US10782464B1 (en) | Generating a lattice of optical spin-orbit beams | |
| Umemoto et al. | X-ray diffraction measurements for solid methane at high pressures | |
| CN111175997A (en) | Polarization-controllable dual-mode orbital angular momentum superposition state generator | |
| Aktsipetrov et al. | Anisotropic photonic crystals and microcavities based on mesoporous silicon | |
| Sheka | Dirac material graphene | |
| Astrova et al. | IR birefringence in artificial crystal fabricated by anisotropic etching of silicon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190917 |