Abstract
This paper investigates the nanoclusters and periodic micron-size structures that
appear on the surface of fused and crystalline quartz as well as on certain other
natural silicates under the action of the radiation of a pulsed CO<sub>2</sub> laser
with pulse width 70 ns and energy per pulse 1 J. Various microscopic and
IR-spectroscopic studies of the surface of the irradiated samples have been used to
study the way in which these structures are formed. The nanoclusters were about
50–100 nm in size. The lengths of the lattice periods are about 7.3 µm on
crystalline quartz and about 8 µm on fused quartz at a laser frequency of
975cm<sup>−1</sup>.
© 2011 OSA
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