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Method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing

A photonic crystal and 3D printing technology, applied in optics, optical components, instruments, etc., can solve the problems that cannot meet the requirements of the three-dimensional structure of the special geometric shape channel, achieve low production cost, high degree of customization, and reduce printing time Effect

Active Publication Date: 2016-05-11
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the preparation methods of three-dimensional photonic crystal template mainly include chemical self-assembly method, optical holographic lithography, laser direct writing method, etc., but these methods can usually only prepare two-dimensional or three-dimensional structures with complete cycles, and two-dimensional structures with defects. , cannot meet the requirements of the three-dimensional structure of the special geometric shape channels or defects

Method used

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  • Method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing
  • Method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing
  • Method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing

Examples

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Effect test

Embodiment 1

[0037] Taking the preparation of a tiny wood-packed three-dimensional photonic crystal template with chiral channels as an example, the steps are as follows:

[0038] (1) Use the 3D model-aided design software to design a tiny wooden model with chiral channels, as shown in the figure. The structure is composed of a number of identical cuboid rods arranged periodically, and the cross-sectional width of each rod is 0.15mm*0.15mm, the number of periods in the x-y-z directions is 15*15*5, the overall size is about 5mm*5mm*3mm, and a chiral channel is designed in the center of the model, and the size is about 0.16mm*0.16mm.

[0039] (2) The model is output as a 3D model file and input into the slicing software to cut the 3D photonic crystal model into several 2D black and white images, (such as figure 2 The white area represents the cross-section of the model, in which there is a small groove in the middle of the central rod, and multiple small grooves are arranged helically along...

Embodiment 2

[0049] Taking the wood-stacked three-dimensional photonic crystal template with a complete cycle as an example, the overall design of the model is the same as in Example 1, and its complete cycle is reflected in the fact that the model is composed of a number of completely identical cuboid rods arranged periodically, and there is no spiral upward Chiral channels or other defects. The preparation steps are the same as in Example 1.

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Abstract

The invention discloses a method for manufacturing three-dimensional photonic crystal templates on basis of micro-projection 3D (three-dimensional) printing. The method includes drawing three-dimensional photonic crystal models of complete cycles, geometric morphology channels or defects; slicing and layering the three-dimensional photonic crystal models to divide the three-dimensional photonic crystal models into a plurality of two-dimensional graphs; sequentially exposing the two-dimensional graphs layer by layer by the aid of a micro-projection 3D printing optical path system, absorbing light by the aid of photosensitive resin to solidify the two-dimensional graphs layer by layer and ultimately printing the three-dimensional photonic crystal templates. The method is based on LED plane projection lithography technologies and is combined with printing principles of three-dimensional printing technologies, so that planes can be quickly formed layer by layer. Tiny imaging light spots can be adjusted according to the sizes of the models in the horizontal directions and requirements on forming precision and can be ultimately projected, and clear imaging locations of the light spots can be effectively positioned and focused. The method has the advantages of high customization degree, full-automatic manufacturing, simple manufacturing procedures, low manufacturing cost, high forming speed and the like.

Description

technical field [0001] The present invention relates to the field of photonic crystal preparation, and more specifically, relates to a method for preparing a three-dimensional photonic crystal template based on micro-projection 3D printing. Background technique [0002] Photonic crystals are new types of optical materials with different dielectric constants and periodic distribution in space. They have photonic band gap characteristics, which can block and selectively propagate light of specific frequencies. Photonic crystals are widely used in optical transmission, integrated optoelectronic devices, high-performance lasers, sensors, filters, etc., and are a hot spot in current scientific research. Photonic crystals have one-dimensional, two-dimensional and three-dimensional spatial distributions, and three-dimensional photonic crystals are considered to have the most application value and potential because they can realize a complete photonic band gap. The above-mentioned ...

Claims

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Application Information

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IPC IPC(8): B29C67/00G02B1/00B33Y30/00
CPCG02B1/005B29C67/00B33Y30/00
Inventor 董建文陈奕贵梁恩涛张炜星
Owner SUN YAT SEN UNIV
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