科研之友
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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: 1 064 nm: 4.0 mu J/pulse, 532 nm: 2.8 mu J/pulse, and 355 nm: 4.2 mu J/pulse. Picoseconds pulse laser is demonstrated feasible in surface scanning at industrial level.
- 出版日期2013-2-10
- 单位上海市激光技术研究所
