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A method for one-way flow surface shaping based on electronic dynamic control space shaping

An electronic dynamic control and one-way flow technology, applied in the field of femtosecond laser applications, can solve the problems of limiting the practical application of one-way liquid diffusion technology, difficult to process three-dimensional adjustable structures, and the device application environment is not wide, etc., to achieve flexible adjustment processing effect, expanding the range of application, the effect of reliable results

Active Publication Date: 2022-03-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current processing methods have the following limitations: (1) Because a mask is required for processing, the processing cost of studying various biomimetic structures is relatively high
(2) Limited by UV curing, high-resolution stereolithography, micro-imprinting and other processing methods, the processed materials are mostly organic materials, so the application environment of the processed devices is not wide
(3) It is difficult to directly process three-dimensional adjustable structures on spatial surfaces
These shortcomings greatly limit the practical application of unidirectional liquid diffusion technology

Method used

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  • A method for one-way flow surface shaping based on electronic dynamic control space shaping
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  • A method for one-way flow surface shaping based on electronic dynamic control space shaping

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Embodiment 1

[0026] This embodiment discloses a method for shaping and processing a one-way flow surface based on electronic dynamic control space, and the specific steps are as follows:

[0027] The parameters of the femtosecond laser used in the experiment are as follows: the femtosecond laser system adopts the laser produced by American Spectrophysics Corporation, and the linearly polarized light is used in the experiment. The laser center wavelength is 800nm, the pulse width is 35fs, and the repetition frequency is 1kHz; The sample to be processed in the experiment is metal silicon with a size of 10mm×10mm×0.5mm.

[0028] The one-way flow surface is shaped and processed based on electronic dynamic control space, which is composed of multiple structural units, and the sharp corner part of each unit is connected to the next unit; the unit is a triangular edge structure with sharp corners, and the structure has a gradient inside Variety;

[0029] A method for shaping and processing a one...

Embodiment 2

[0037] This embodiment discloses a method for shaping and processing a one-way flow surface based on electronic dynamic control space, and the specific steps are as follows:

[0038] The parameters of the femtosecond laser used in the experiment are as follows: the femtosecond laser system adopts the laser produced by American Spectrophysics Corporation, and the linearly polarized light is used in the experiment. The laser center wavelength is 800nm, the pulse width is 35fs, and the repetition frequency is 1kHz; The sample to be processed in the experiment is metal silicon with a size of 10mm×10mm×0.5mm.

[0039] The one-way flow surface is shaped and processed based on electronic dynamic control space, which is composed of multiple structural units, and the sharp corner part of each unit is connected to the next unit; the unit is a triangular edge structure with sharp corners, and the structure has a gradient inside Variety;

[0040] A method for shaping and processing a one...

Embodiment 3

[0048] This embodiment discloses a method for shaping and processing a one-way flow surface based on electronic dynamic control space, and the specific steps are as follows:

[0049] The parameters of the femtosecond laser used in the experiment are as follows: the femtosecond laser system adopts the laser produced by American Spectrophysics Corporation, and the linearly polarized light is used in the experiment. The laser center wavelength is 800nm, the pulse width is 35fs, and the repetition frequency is 1kHz; The sample to be processed in the experiment is metal silicon with a size of 10mm×10mm×0.5mm.

[0050] The one-way flow surface is shaped and processed based on electronic dynamic control space, which is composed of multiple structural units, and the sharp corner part of each unit is connected to the next unit; the unit is a triangular edge structure with sharp corners, and the structure has a gradient inside Variety;

[0051] A method for shaping and processing a one...

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Abstract

The invention relates to a method based on electronic dynamic regulation and control of space shaping and processing of one-way flow surface, using a space light shaper to change the Gaussian light field into a light field with different shapes and energy distribution, and processing to obtain a bionic that can make the liquid flow in one direction A functional surface belongs to the technical field of femtosecond laser application. The femtosecond laser light field is transformed from a Gaussian distribution to a three-dimensional bionic light field distribution, so that bionic anisotropic structure processing can be realized on a variety of solid materials. The anisotropic bionic structure can control the direction of liquid flow and utilize spatial light The modulator (SLM) performs phase transformation on the Gaussian beam, which can control the three-dimensional distribution of the output energy of the femtosecond laser, and obtain different anisotropic bionic spatial light fields. The anisotropic biomimetic structure includes sharp triangular edges of a single structure, height gradient changes, and a continuous and consistent functional surface. The research results can further expand the application of femtosecond laser micromachining in fields such as fog collection and chemical reaction control.

Description

technical field [0001] The invention relates to a method for shaping and processing one-way flow surface based on electronic dynamic regulation and control space, using a space light shaper to change the Gaussian light field into a light field with different shapes and energy distribution, and processing the bionic functionality that can make the liquid one-way flow The invention relates to a surface, belonging to the technical field of femtosecond laser application. Background technique [0002] Controlling the surface micro-nano structure of materials to achieve liquid diffusion is of great significance in a wide range of applications. It is a challenging task to realize the flexible fabrication of spontaneous liquid transport surfaces on two-dimensional planes and three-dimensional curved surfaces of different materials. Liquid flow is the most common phenomenon in nature, and the unidirectional liquid diffusion surface can overcome the problem of gravity and temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/352B23K26/064B23K26/0622B23K26/70
CPCB23K26/352B23K26/0643B23K26/0622B23K26/702B23K26/355B23K26/0648B23K26/067B23K26/362
Inventor 姜澜李欣陈孝喆李晓杰梁密生
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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