Method for controlling size and distribution of metal surface micro-nanostructure

A micro-nano structure, metal surface technology, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve problems such as increasing the cost of processing equipment, limiting the size of the focusing spot, and limiting the control of the grating period, and achieves a wide range of metal types. , The production process is simple, and the processing depth is large.
CN103433618AActive Publication Date: 2013-12-11CHANGCHUN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN UNIV OF SCI & TECH
Publication Date
2013-12-11

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Abstract

The invention discloses a method for controlling the size and distribution of a metal surface micro-nanostructure. In order to implement the invention, plasma filaments induced by ultrashort pulse laser with the pulse width of 15fs-5ps are utilized to directly irradiate a metal surface, by controlling the ultrashort pulse laser parameters and the scanning speed and scanning spacing to the metal surface of the filaments, control of the plasma filaments on the size and distribution of the metal surface induced micro-nanostructure is realized; by changing the incidence angle of the laser induced plasma filaments, the orientation of the micro-nanostructure is changed; the control on the shape of the micro-nanostructure is realized by changing the polarizing character of the laser. The invention provides a method used for designing parts such as a solar absorber in an optimized manner.
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Description

technical field

[0001] The invention relates to the field of laser micromachining and the preparation of micro-nano structures on metal surfaces, in particular to a control method for preparing micro-nano structures on metal surfaces by ultrashort pulse laser treatment. Background technique

[0002] There are not many technologies for metal surface modification at present. With the development of micro-processing technology and the gradual maturity of its theory, more and more scientific workers have turned their attention to the preparation and research of micro-nano structures on metal surfaces. Through different means and methods Micro-nanostructures prepared on metal surfaces have potential applications in different fields, such as solar energy absorption, high-efficiency thermal radiation sources, thermal radiation conversion, and biological detectors.

[0003] Electron beam or plasma etching can be used to prepare micro-nano structures on the metal surface, but the pro...

Claims

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