Microstructure formation on the surface of aluminum target by a nanosecond pulsed laser

M. H. Mahdieh; S. H. Mahmoudi

doi:10.1117/12.879045

16 November 2010 Microstructure formation on the surface of aluminum target by a nanosecond pulsed laser

M. H. Mahdieh, S. H. Mahmoudi

Proceedings Volume 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 77511Q (2010) https://doi.org/10.1117/12.879045
Event: 18th International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2010, Sofia, Bulgaria

Abstract

In this paper, formation of microstructure on the surface of aluminum target is investigated. The target surface was irradiated by trains of nanosecond Nd:YAG laser in ambient air. The irradiation was performed at trains of 1 to 500 laser pulses with energies ranging from 0.1 to 0.4 mJ. Such laser pulse energies provided intensities at the order of 10⁷ W/cm²at the target surface. Using optical microscope, the irradiated region of the target surface was characterized by measuring of microstructures depth and length. In this study the effects of laser pulse energy and the number of pulses in microstructure formation was inspected. The results show quasi-Gaussian profile for the distributions of microstructure depth and length.

Citation Download Citation

M. H. Mahdieh and S. H. Mahmoudi "Microstructure formation on the surface of aluminum target by a nanosecond pulsed laser", Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 77511Q (16 November 2010); https://doi.org/10.1117/12.879045

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