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2009 | 116 | 4 | 611-613
Article title

Surface Modification of Metallic Targets with Ultrashort Laser Pulses

Content
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Languages of publication
EN
Abstracts
EN
Interaction of pulsed femtosecond Ti:sapphire laser (160 fs), operating at high repetition rate (75 MHz) at 800 nm, with nickel-based superalloy Inconel 600 and tungsten-titanium (WTi) target was studied. The WTi target was in form of thin film deposited on silicon substrate. Low laser fluence of maximum 50 mJ/cm^{2} had modified the target surface during irradiation/exposure time of seconds or minutes. The radiation absorbed from the laser beam generates at the surface a series of effects, such as direct material vaporization, formation of clusters, etc. Morphological features of the targets can be summarized as: (a) intensive removal of material and crater appearance; (b) creation of nanostructures; (c) microcracking, etc. Ablation of Inconel 600 surface is effective, resulting in formation of holes with small diameter ( ≤ 10 μm) and relatively large depth ( ≤ 50 μm). In case of WTi target/thin film, the surrounding rim is not so expressed, and crater depths are lower. It can be concluded that the average laser power of the order of watts, pulse energies of the order of nanojoules and high repetition rates (MHz range) can successfully modify metallic materials.
Keywords
Year
Volume
116
Issue
4
Pages
611-613
Physical description
Dates
published
2009-10
References
  • 1. A. Semerok, B. Sallé, J.F. Wagner, G. Petite, Laser Part. Beams 20, 67 (2002)
  • 2. E.G. Gamaly, N.R. Madsen, M. Duering, A.V. Rode, V.Z. Kolev, B. Luther-Davies, Phys. Rev. B 71, 174405 (2005)
  • 3. A. Di Bernardo, C. Courtous, B. Cros, G. Matthiewussent, D. Batani, T. Desai, F. Strati, G. Lucchini, Laser Part. Beams 21, 59 (2003)
  • 4. M.S. Trtica, B.B. Radak, B.M. Gakovic, D.S. Milovanovic, D. Batani, T. Desai, Laser Part. Beams 27, 85 (2009)
  • 5. B.M. Mirdan, H.A. Jawad, D. Batani, V. Conte, T. Desai, R. Jafer, Laser Part. Beams 27, 103 (2009)
  • 6. C.B. In, Y.I. Kim, W.W. Kim, J.S. Kim, S.S. Chun, W.J. Lee, J. Nucl. Mater. 224, 71 (1995)
  • 7. S. Petrovic, B. Gakovic, D. Perusko, M. Trtica, B. Radak, P. Panjan, S. Miljanic, Appl. Surf. Sci. 254, 4013 (2008)
  • 8. S.M. Eaton, H. Zhang, P.R. Herman, F. Yoshino, L. Shah, J. Bovatsek, A.Y. Arai, Opt. Exp. 13, 4708 (2005)
  • 9. B. Tan, S. Panchatsharam, K. Venkatakrishnan, J. Phys. D, Appl. Phys. 42, 065102 (2009)
  • 10. X. Wang, X. Xu, J. Therm. Str. 25, 457 (2002)
  • 11. C. Cheng, X. Xu, Phys. Rev. B 72, 165415 (2005)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv116n449kz
Identifiers
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