Ultrafast laser surface wettability modification on alumina surface

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（2）
• 页码范围: 62-64
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.021403

摘要

As a new research area,laser surface wettability modification brings new applications for both laser and materials for industry.The picoseconds (10 ps) pulse laser surface micro-processing over alumina covered aluminium is researched.In the experiment,10-ps laser pulse is employed and the energy threshold for different laser wavelength and repetition rate is measured.At the repetition rate of 5 kHz,the energy thresholds are:1064 nm:4.0 μJ/pulse,532 nm:2.8 μJ/pulse,and 355 nm:4.2 μJ/pulse.Picoseconds pulse laser is demonstrated feasible in surface scanning at industrial level.