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Efficient and Controllable Preparation of Tridirectionally Anisotropic Sliding Surfaces Based on Spatial Light
Wenjun Wang1,2, Sibin Yuan1,2, Xiao Liu1,2
1State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an 710054, China.
Langmuir : the ACS Journal of Surfaces and Colloids
|November 21, 2023
Summary
Efficiently preparing tridirectionally anisotropic sliding surfaces (TASSs) is now possible. A novel femtosecond laser multifocus array with gradient intensity, controlled by a spatial light modulator, enables precise TASS fabrication.
Area of Science:
- Materials Science
- Nanotechnology
- Laser Processing
Background:
- Efficient and controllable preparation of tridirectionally anisotropic sliding surfaces (TASSs) is crucial for advanced applications.
- Current methods for TASS fabrication face significant challenges in efficiency and control.
Purpose of the Study:
- To develop an efficient and controllable method for preparing tridirectionally anisotropic sliding surfaces (TASSs).
- To demonstrate the superiority of the proposed method through structural and performance characterizations.
Main Methods:
- Utilizing a spatial light modulator (SLM) to adjust a femtosecond laser beam into a multifocus array with gradient intensity distribution.
- Implementing an image feedback algorithm for precise control over the laser beam modulation.
- Employing multifocus combination and focus intensity design strategies for TASS preparation.
Main Results:
- Successful and controllable fabrication of tridirectionally anisotropic sliding surfaces (TASSs) was achieved.
- Structural and performance characterizations confirmed the effectiveness and superiority of the developed method.
- The proposed technique offers an efficient solution for processing complex micro/nanostructures.
Conclusions:
- The developed femtosecond laser multifocus array technique provides an efficient and controllable pathway for TASS preparation.
- This method holds promise for inspiring solutions to high-efficiency processing challenges in micro/nanofabrication.
- The findings contribute to advancements in the field of advanced material surface engineering.
