Forced laser nanostructuring of the surface of alumina-oxide ceramics
Keyword(s):
The possibility of creating quasiperiodic nanostructures on the surface of articles made of ceramic materials based on -Al2O3 under the action of a laser beam moved by a two-coordinate linear stepping motor (LSM) is shown. It is shown that the cause of the arising non-uniformity of heat release and convective instability of the molten layer are electromagnetic surface waves at the "conductor-insulator" interface, while the "conductor" is the melt layer. The discreteness of the laser beam movement due to LSD makes it possible to create a regular wave-like relief on the melt surface, which plays the role of an input diffraction structure for gen-erating a surface wave of TM polarization.
Keyword(s):
2013 ◽
Vol 54
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pp. 380-388
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2016 ◽
Vol 1136
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pp. 400-405
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1980 ◽
Vol 37
(9)
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pp. 2113-2119
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1997 ◽
Vol 38
(7-8)
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pp. 253-259
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