Metal micromachining with shaped femtosecond laser pulses

Hu ZHan; Qi Ying; Yang Ding; ZHou SHengpeng; SHi Ying; Tian Lei; Wang Qinxin; Ding Dajun

doi:10.3788/HPLPB20122410.2381

Volume 24 Issue 10

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(10): 2381-2385

Wang Wei, Fang Zhiheng, Jia Guo, et al. Direct-drive cylindrical target compression at Shenguang-Ⅱ laser facility[J]. High Power Laser and Particle Beams, 2013, 25: 2303-2306. doi: 10.3788/HPLPB20132509.2303

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Hu ZHan, Qi Ying, Yang Ding, et al. Metal micromachining with shaped femtosecond laser pulses[J]. High Power Laser and Particle Beams, 2012, 24: 2381-2385. doi: 10.3788/HPLPB20122410.2381

Citation:

Hu ZHan, Qi Ying, Yang Ding, et al. Metal micromachining with shaped femtosecond laser pulses[J]. High Power Laser and Particle Beams, 2012, 24: 2381-2385. doi: 10.3788/HPLPB20122410.2381

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Metal micromachining with shaped femtosecond laser pulses

doi: 10.3788/HPLPB20122410.2381

1.
Institute of Atomic and Molecular Physics,Jilin University,Changchun 130012,China

Received Date: 2012-05-22
Rev Recd Date: 2012-06-11
Publish Date: 2012-10-15

Abstract

Abstract

This paper studies the ablation of aluminum foil (50 m thickness) under various conditions by observing the morphology of ablation caves and by analyzing the relationship of the photodiode signal of transmitted light and the number of pulses to penetration. In order to obtain better condition of ablation, several variable quantities in the experiment are tested, which are the pulse energy, position of laser focus relative to sample surface, ambient pressure and pulse shape. Preferable results are obtained by using some specific shaped pulses to ablate samples, compared to those obtained with transform-limited pulses, which means laser pulse shaping technology can be of important usage and application in micromachining metal material.
- shaped pulse,
- ablation,
- laser energy,
- ambient pressure,
- laser focus position

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