Document Type
Article
Publication Date
2014
Keywords
15
Digital Object Identifier (DOI)
http://dx.doi.org/10.1088/1742-6596/510/1/012041
Abstract
Action of ultrafast optical and X-ray lasers on metals is considered. It is known that under certain conditions surface structures appear as result of irradiation. Generation of nano-structures is usually associated with excitation of surface plasmons. But often structures do not have forms of ripples, and their spacial scales are order of magnitude less than optical wavelength. In the paper full description of surface nano-structures is given for the case of single shot laser action onto well polished boundaries. Plasmon effects are insignificant for this case and also for X-ray pulses. It is shown that structures are formed after laser illumination in a process of mechanical spallation of ultrathin surface layer of molten metal. Spallation is accompanied by a strong foaming of melt, breaking of foam, and freezing of foam remnants. Those remnants form chaotic nano-structures observed in experiments.
Rights Information
This work is licensed under a Creative Commons Attribution 3.0 License.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Journal of Physics: Conference Series, v. 510, art. 012041
Scholar Commons Citation
Inogamov, Nail A.; Zhakhovsky, Vasily V.; Khokhlov, Viktor A.; Ashitkov, Sergey I.; Emirov, Yusuf N.; Khichshenko, Konstantin V.; Faenov, Anatoly Ya.; Pikuz, Tatiana A.; Ishino, Masahiko; Kando, Masaki; Hasegawa, Nobory; Nishikino, Masaharu; Komarov, Pavel S.; Demaske, Brian J.; Agranat, Mikhail B.; Anisimov, Sergey I.; Kawachi, Tetsuya; and Oleynik, Ivan I., "Ultrafast Lasers and Solids in Highly Excited States: Results of Hydrodynamics and Molecular Dynamics Simulations" (2014). Physics Faculty Publications. 4.
https://digitalcommons.usf.edu/phy_facpub/4
