Authors:
Yi-Cheng Lin
;
Chih-Chung Yang
;
Shih-Feng Tseng
;
Donyau Chiang
;
Yu-Hsuan Lin
;
Kuo-Cheng Huang
and
Wen-Tse Hsiao
Affiliation:
Instrument Technology Research Center, Taiwan
Keyword(s):
Laser Fluence, Laser Material Interaction, Nano- / Micro Surface Structure Formation.
Related
Ontology
Subjects/Areas/Topics:
High Intensity Lasers and High Field Phenomena
;
Lasers
;
Photonics
;
Photonics, Optics and Laser Technology
;
Ultrafast Electronics, Photonics and Optoelectronics
Abstract:
This study reports on the development of picosecond laser system to titanium alloy surface treatment applications. In the picosecond laser-scanning system, that is based on the fiber-optics laser source and integrated with a designed optics / optical machine design and control technology of scanning system. To analyze the laser material interaction, the laser fluence, pulse repetition frequency of laser source, position of focused points, scan speed and pulse duration were adjusted. After laser surface treatment, the surface roughness and surface morphologies of treated surface were evaluated by using a field emission scanning electron microscope. Moreover, the contact angle measurement was used to analyze the hydrophilic and hydrophobic properties of the treatment surface with micro- / nano- structures.