Thermocavitation Melt Instability and MicroCrown Formation near the Threshold for Femtosecond Laser Spallation of a Silicon Surfaceстатья
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Дата последнего поиска статьи во внешних источниках: 12 января 2015 г.
Аннотация:Thermocavitation instability of a molten layer on a silicon surface was experimentally revealed in the form of
a microscale surface crownlike feature produced by multiple infrared or visible femtosecond laser pulses near
the spallation threshold fluence. The number of crown spikes varied versus the crown perimeter, monotonically increasing with increasing laser shot number. The instability dynamics was described in terms of the
intermediate crown structures (the spike number) using the proposed thermocavitation model based on the
Kuramoto–Sivashinsky hydrodynamic equation.