研究目的
Investigating the use of ultra-fast lasers for micro processing of three-dimensional structures for surface functionalization, focusing on increasing resolution and reducing machining time through the use of multiple laser spots.
研究成果
The study demonstrates that ultra-fast laser micro processing with multiple spots can significantly increase the ablation rate and reduce machining time for creating functional microstructures on various materials. The approach shows potential for further improvements and applications in industrial settings.
研究不足
The study is limited by the technical constraints of the acousto optical modulators and the size of the modulator-crystal, beam delivery optics, and focusing optics, which restrict the maximum number of laser spots that can be effectively utilized.
1：Experimental Design and Method Selection:
The study employs ultra-fast lasers with diffractive optical elements and acousto optical modulators for micro processing.
2：Sample Selection and Data Sources:
Various materials including steel, copper, and brass were used to evaluate the ablation rates and quality.
3：List of Experimental Equipment and Materials:
High compact ps-laser, diffractive optical element (DOE), 16 channel acousto optical modulator (AOM), and various focusing optics.
4：Experimental Procedures and Operational Workflow:
The laser beam is split into multiple spots, modulated individually, and focused onto the material surface to create microstructures.
5：Data Analysis Methods:
Ablation rates and quality were evaluated based on the material removal rate and the precision of the microstructures.
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