▎ 摘　　要

NOVELTY - Preparing a graphene surface plasmon array waveguide periodic self-imaging device comprises e.g. defining a graphene surface plasmon array waveguide periodically from the main structure of the imaging device are: the main structure of the graphene surface plasmon array waveguide comprises the substrate, single-atom layer graphene strip waveguide, where the substrate and the medium layer is located at the bottom, where the width of the array waveguide is periodic and medium waveguide unit width (related to N-type array waveguide and base width is N times the medium strip waveguide unit. USE - The method is useful for preparing a graphene surface plasmon array waveguide periodic self-imaging device. ADVANTAGE - The method overcomes the relative permittivity and periodical imaging of the material in the metal surface plasmon array waveguide and cannot be adjusted in real time, ensures the defects can be adjusted in real time by the relative permittivity of the external voltage grapheme and different Fermi levels and different periodic self-images occur at different voltages. DETAILED DESCRIPTION - Preparing a graphene surface plasmon array waveguide periodic self-imaging device comprises (i) defining a graphene surface plasmon array waveguide periodically from the main structure of the imaging device are: the main structure of the graphene surface plasmon array waveguide comprises the substrate, single-atom layer graphene strip waveguide, where the substrate and the medium layer is located at the bottom and its thickness is 100, where the width of the array waveguide is periodic and medium waveguide unit width (related to N-type array waveguide and base width is N times the medium strip waveguide unit N + 1 times the width and array waveguide period width), a dielectric constant of the substrate material is 3.92, where the upper side of the substrate layer is covered with a single-atom layer graphene, and the thickness thereof is 0.5 nm, i.e. a thickness of a single atomic layer, the width of the base of the single atomic layer graphene is equal to the width of the single optical properties of atomic layer graphene is expressed as the relative dielectric constant of the graphene, and the photoelectric conductivity of graphene, the single atomic layer graphene on the surface covered with the dielectric strip waveguide of array waveguide, the width is w=100 nm, and the height is h= 100nm, and the interval between adjacent waveguides is 80 nm, and the relative dielectric constant is 3.92 in the invention, array waveguide comprises seven same dielectric waveguide units, besides the surrounding covering layer is air, and the dielectric constant is 1; (ii) calculating the conductivity of the graphene to the relative dielectric constant, the relative dielectric constant of graphene, and calculating the relative dielectric constant from the conductivity which is divided into out-of-plane relative dielectric constant of (I) i.e. 2.5, the in-plane relative dielectric constant of (H(~o) =2.5 + i delta (~o)/(0~o), the following calculation expression (I) of photoelectric conductivity of graphene in the case of free similar: where kB represents Boltzmann constant, ~o represents frequency, EF is the Fermi graphene energy level. is the relaxation time of the charged, mu is the mobility of charged of the graphene in the simulation process of the invention, the charging speed is set to VF= 106 m/second the charged mobility is 10000 cm2/(Vs), temperature is T= 300 K, the Fermi level is adjusted to 1.17 eV, where using the (II) isseen in the dielectric constant of graphene mainly associated with the frequency of the incident light and the Fermi level of the graphene, and the two variables are externally adjustable and the Fermi level of graphene is adjusted by an external voltage, applying the Fermi level of voltage by changing the graphene to realize the real-time adjustability periodic imaging; and (iii) using total magnetic field strength in the compute array waveguide: by calculating period so as to directly display the arrayed waveguide of the magnetic field intensity in the array waveguide self imaging phenomenon, determining through theoretical analysis of periodically required in the self-mode features and mode order, where the theory of magnetic field intensity obtained in the waveguide explained as: dielectric waveguide will support similar TM waveguide mode, so the total magnetic field strength in the arrayed waveguide is expressed as: graphene plasmon interaction between cell array waveguide in (II) Cl (z) is changed periodically along the z-coordinate axis direction and mode of wave equation without interference of the first waveguide from left to right represents the support of beta 1 is the surface graphene single medium plasmon propagation constant of the waveguide mode, only considering adjacent coupling effect of the waveguide, in the N-type array waveguide mode coupling equation is expressed as: where, H is the magnetic field vector, which can be expressed as is non-0 matrix unit and expressed as l=1, 2,...N, and Ml, l+1 = k l, l+1, + 1, l= k+1, where l=1, 2,... N-1 k-i, j is the coupling waveguide coupling coefficient, the graphene surface plasmon mode in the arrayed waveguide is: (IV) Hv is eigenvectors the eigenvectors satisfy the expression Hv (z) = Hv (0) exp (i ( delta v), where v=1, 2...N, delta v is the complex propagation constant of main mold Hv, I is unit matrix, graphene and from all base mode or intrinsic plasmon array waveguide can beobtained by solving equation (IV), where each graphene plasmon waveguide are the same, so their propagation constants are equal, namely beta = beta , and has the same coupling coefficient ki, j = k, formula (IV) can know the graphene from the laser element array waveguide contains different modes, according to the property, in the array waveguide to utilize graphene plasmon coupling between the different waveguide modes of the waveguide element to realize periodic self imaging phenomenon, where the base mode using array waveguide in the highest order mode in the invention through the mutual coupling mode between different main mode of periodically by adding selfimage phenomenon, the Fermi energy level of the graphene ca is modulated by an external voltage, and adjusted by adjusting an external voltage to adjust the periodic symmetry properties, in particular period of the periodic imaging. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of a graphene surface plasmon array waveguide periodic self-imaging device.