研究目的
To review the latest applications in the field of surface functionalization through LIPSS, including biomimetic functionalities on fluid transport, control of the wetting properties, specific optical responses in technical materials, improvement of tribological performance on metallic surfaces, and bacterial and cell growth for medical devices.
研究成果
The paper concludes that LIPSS offer a versatile and reproducible method for surface functionalization with applications in optics, chemistry, medicine, and tribology. The review highlights the potential for industrial scalability and the need for further research to optimize the structures for specific applications.
研究不足
The technical constraints include the dependence of LIPSS formation on laser parameters and material properties. Potential areas for optimization include the control over the periodicity and uniformity of the structures for specific applications.
1:Experimental Design and Method Selection:
The methodology involves the use of ultrashort linearly polarized laser pulses to induce periodic surface structures (LIPSS) on materials. The formation mechanism is based on the interference of incident laser radiation with electromagnetic surface waves.
2:Sample Selection and Data Sources:
Various materials including metals, semiconductors, and dielectrics are selected based on their optical, thermal, and surface properties.
3:List of Experimental Equipment and Materials:
A Ti:sapphire femtosecond laser source delivering pulses of 30 fs at 1 kHz repetition rate with a central wavelength of 800 nm is used.
4:Experimental Procedures and Operational Workflow:
The laser beam scans the surface at a certain constant speed either by moving the sample or by displacing the beam in a meandering way. The spatial overlap among subsequent pulses is defined.
5:Data Analysis Methods:
The analysis involves characterizing the surface structures using scanning electron microscopy and evaluating the functional properties such as wettability, optical response, and tribological performance.
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