Method for realizing dual-channel nano printing and dual-channel holography based on laminated super surface

A nano-printing and meta-surface technology, applied in the direction of instruments, etc., to achieve the effect of flexible design, light weight and broad application prospects

Inactive Publication Date: 2020-02-14
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, existing methods cannot simultaneously encode two na

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  • Method for realizing dual-channel nano printing and dual-channel holography based on laminated super surface
  • Method for realizing dual-channel nano printing and dual-channel holography based on laminated super surface
  • Method for realizing dual-channel nano printing and dual-channel holography based on laminated super surface

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Embodiment Construction

[0029] For a better understanding of the present invention, the following examples are further descriptions of the present invention, but the content of the present invention is not limited to the following examples.

[0030] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have Certain orie...

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Abstract

The invention relates to a method for realizing dual-channel nano printing and dual-channel holography based on a laminated super surface. The method comprises steps that a super surface unit structure is constructed, wherein the super surface unit structure comprises a substrate, a first nano brick arranged on the substrate and a second nano brick embedded in the substrate; structural parametersof a first nano brick and a second nano brick are obtained through optimization; a super surface structure array is constructed, and the super surface structure array comprises a plurality of super surface unit structures; according to the imaging requirements that incident light passes through the first nano brick and the second nano brick in sequence and enters the second nano brick and then enters a near-field pattern and a far-field pattern in two modes of the first nano brick, arrangement of a first nano brick turning angle theta 1 and a second nano brick turning angle theta 2 which can simultaneously meet intensity distribution of near-field imaging and can form a phase-type Fourier hologram in a far field id found out, and thereby the super surface material capable of realizing dual-channel nano printing and dual-channel holography is obtained. The method is advantaged in that four completely independent images can be coded on one super surface material.

Description

technical field [0001] The invention relates to the technical field of micro-nano optics and image display, in particular to a method for realizing dual-channel nano-printing and dual-channel holography based on stacked metasurfaces. Background technique [0002] Metasurfaces consisting of ultrathin subwave antennas offer a way to realize planar optical devices. Currently metasurfaces are widely used in lenses, holograms, optical invisibility and other fields. Compared with conventional optics, the remarkable feature of metasurfaces is their ability to achieve multifunctionality. At present, multifunctional metasurfaces mainly generate different images by changing the polarization state, incident angle, and wavelength of incident light. However, existing methods cannot simultaneously encode two nanoprinted images and two holographic images on the same sheet. Contents of the invention [0003] The purpose of the present invention is to provide a method for realizing dual...

Claims

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Application Information

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IPC IPC(8): G03H1/00G03H1/16
CPCG03H1/0005G03H1/16G03H2001/045
Inventor 李子乐郑国兴邓娟单欣李仲阳
Owner WUHAN UNIV
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