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Method, processing system and collecting system for processing various structure colors through femtosecond laser

A femtosecond laser processing and processing system technology, applied in the field of micro-processing, can solve the problems of low direct processing efficiency, hindering the industrialization of structural color, and lack of database for structural color processing, and achieve the effect of meeting various industrial needs

Active Publication Date: 2016-08-03
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondly, the processing of structural color lacks a database corresponding to color and femtosecond laser processing parameters, which hinders the application of structural color to industrialization
Furthermore, the femtosecond laser processing method is currently limited to plane processing, and the processing method of curved surfaces still needs to be explored
Finally, the direct processing efficiency of structural color is low, and the transfer printing of structural color will greatly improve production efficiency
These problems are challenges to structural color processing, and at the same time expand the room for improvement in structural color processing

Method used

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  • Method, processing system and collecting system for processing various structure colors through femtosecond laser
  • Method, processing system and collecting system for processing various structure colors through femtosecond laser
  • Method, processing system and collecting system for processing various structure colors through femtosecond laser

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Embodiment 1

[0037] The multi-color laser micro-nano structure processing system includes laser light source 1, first and second apertures 2 and 4, optical parameter amplifier 3, first, second, third, fourth and fifth mirrors 5, 11, 12, 13, 14. Half wave plate 6, prism 7, 1 / 4 wave plate 8, shutter 9, beam quality analyzer 10, phase plate 15, half mirror 16, energy meter 17, focusing mirror 18, mobile platform 20, CCD camera 21, computer 22, such as figure 1 shown. Among them, the optical parametric amplifier is used to modulate the beam with a center wavelength of 800nm ​​to form a beam of 260-2600nm; 1 / 2 glass and prism are used to control the energy and polarization state of the beam; 1 / 4 glass is used to convert the linearly polarized beam Modulated into circularly polarized light or elliptically polarized light; the phase plate is used to focus the laser beam into a linear focus; the precision mobile platform is used to position and move the sample; the CCD camera is used to monitor t...

Embodiment 2

[0039] Using Example 1 to prepare micro-nano structures of various colors on different materials, a collection system for various structural colors is established. The system is mainly composed of an optical camera 23 , a spectrometer 24 , an illumination source 25 , a rotating platform 27 and a computer 28 . The illuminating light source 23 illuminates the sample 26 placed on the rotating platform 27 . The structural color produced by the diffraction and reflection of micro-nano structures on the sample surface is recorded by the optical camera 23 and the spectrometer 24 . By changing the angle between the optical camera 23, the spectrometer 24, the illumination source 25, the rotating platform 27 and the Z-axis in the coordinate system within the range of 0-180° to determine the change of the structural color spectrum, thereby establishing a structural color collection system ( image 3 ).

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Abstract

The invention discloses a method, processing system and collecting system for processing various structure colors through a femtosecond laser. A femtosecond laser color technique is a material surface coloration means having broad prospects, however, the femtosecond laser control method is simplex relatively, multi-color patterns are difficult to form, curved surface processing cannot be achieved as the laser focal plane is difficult to extend in the axial direction, and the processing demand of curved surfaces of specific design is difficult to meet. In order to overcome the current situation of the femtosecond laser color technique in the processing field, the wavelength, the polarization state and the axial focus depth of light beams are accurately controlled through an optical parametric amplifier, multiple polarization modulators and a phase plate on the basis of a micro-nano structure in the femtosecond laser self-assembly forming period, and accordingly laser beams of various wavelengths, various kinds of polarization and different focus depths are generated, and the effect that a large area of various structure colors are prepared on a plane or curved surface is achieved. The method, processing system and collecting system for processing the various structure colors through the femtosecond laser provide an effective means for large-area and batch preparation of the structure colors.

Description

technical field [0001] The invention belongs to the technical field of microprocessing, and in particular relates to a femtosecond laser processing method for multicolor structural colors, a processing system and an acquisition system. Background technique [0002] As a cutting-edge technology, femtosecond laser processing technology has shown many advantages in the field of micro-nano manufacturing. Femtosecond laser can form submillimeter, micron and nanometer multi-level structures on the surface of various materials at one time, which is fast and can be processed in large areas. . The femtosecond laser processes micro-nano structures on the surface of the material. This structure diffracts the incident light on the surface of the material, and the scattering and reflection effects form a color effect, which is called structural color. Compared with traditional chemical formulas, laser structural color has the advantages of no coating, no pollution, and no fading. Femto...

Claims

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Application Information

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IPC IPC(8): B23K26/0622B23K26/064B23K26/70
CPCB23K26/0626B23K26/064B23K26/702
Inventor 李国强章振胡衍雷吴东褚家如黄文浩
Owner UNIV OF SCI & TECH OF CHINA
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