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A tunable two-dimensional optical invisibility cloak based on multilayer paraffin composite phase change materials

A composite phase-change material and paraffin technology, applied in optics, nonlinear optics, coats, etc., can solve the problems of small implementation cost, stealth function does not have tunability, etc., achieve low implementation cost, prolong camouflage time, and reduce complexity degree and cost effects

Active Publication Date: 2019-01-01
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the shortcoming that the stealth function of the existing two-dimensional optical stealth cloak does not have tunability (that is, it cannot turn on / off the light stealth function), and use the common material of paraffin composite phase change material to provide A new technology to realize an adjustable (open / close) two-dimensional optical invisibility cloak, which makes the system have the advantages of simple structure, fast speed, easy operation, low energy consumption, strong real-time performance and low implementation cost

Method used

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  • A tunable two-dimensional optical invisibility cloak based on multilayer paraffin composite phase change materials
  • A tunable two-dimensional optical invisibility cloak based on multilayer paraffin composite phase change materials
  • A tunable two-dimensional optical invisibility cloak based on multilayer paraffin composite phase change materials

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Embodiment 1

[0029] First, through the material growth process and mask process, the designed two-paraffin composite phase change material ring layer is prepared on the upper surface of the substrate 1, that is, the center of the x-y horizontal plane is taken as the axis from the inside to the outside in the direction of the x and y axes. Layer continuation is formed to realize N layers (N≥1) of paraffin composite phase change material ring layers, as shown in Figure 2(a).

[0030] Among them, the design of the ring layer of the paraffin composite phase change material can use algorithms such as finite time domain difference method and finite element method. The thin metal patch 10 is processed between the bottom of the ring layer 2 of N layers (N≥1) of paraffin wax composite phase change material and the upper part of the substrate 1 through a coating process.

[0031]Small holes 5 are drilled in the substrate corresponding to each thin metal patch 10 . A wire 6 is installed in the small...

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Abstract

The invention provides a multilayer paraffin composite phase transition material based adjustable two-dimensional optical invisible cloak. Paraffin composite phase transition material circular layers extend in the direction of an X and y axes layer by layer with the center of an x-y plane as an axis to form the adjustable two-dimensional optical invisible cloak; the solid-liquid state of paraffin composite phase transition materials in different circular layers can be controlled as so to allow various layers to correspond to different dielectric constants and magnetic conductivity coefficients, a two-dimensional dielectric constant and magnetic conductivity coefficient distribution which are desired by optical invisibility can be acquired, and then after light bypasses through a cloak zone, a light field resumes original distribution, the optical invisible function can be achieved, external light interference on an article in the center of the optical invisible cloak can be shielded, and external light field distribution cannot be affected. the solid-liquid state of the paraffin composite phase transition material in each circular layer can be controlled circularly, real-time on / off performance of the optical invisible cloak can be achieved, and the defect that the two-dimensional optical invisible cloak cannot allow circular on-off can be overcome.

Description

technical field [0001] The invention relates to a method and device for realizing an adjustable two-dimensional optical invisibility cloak based on a multi-layer paraffin wax composite phase change material, which can be applied to the field of light field control. Background technique [0002] In 2006, Document 1: "J.B.Pendry et al, SCIENCE, 2006(312): 1780" proposed for the first time that the use of anisotropic media can manipulate the propagation direction of light waves and realize the concept of optical cloaking, which has attracted widespread attention and has become an important field in the field of optics. research hotspots. In the same year, Document 2: "D.Schurig et al, SCIENCE, 2006(314): 977" verified the transverse electric wave two-dimensional metamaterial invisibility cloak for the first time in the microwave segment. In 2007, Document 3: "Cai et al, Nature Photonics, 2007(1): 224" proposed a transverse magnetic wave two-dimensional metamaterial invisibilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A41D3/08G02F1/29
CPCA41D3/08G02F1/29
Inventor 曹暾
Owner DALIAN UNIV OF TECH
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