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Computer Optics, 2016, Volume 40, Issue 6, Pages 863–870 (Mi co338)  

OPTO-IT

Surface modification of silica glass by pulses of a picosecond laser

M. A. Zavyalova

Technological Design Institute of Scientific Instrument Engineering, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

Abstract: An experimental laser system for studying the processes of micro– and nanostructure direct formation in a silica glass by picosecond laser pulses is described. A method of ablation monitoring based on the Shack-Hartmann wavefront sensor is proposed. Ablation craters on the surface of the silica glass varying in depth from $23 \pm 4 nm $ to $144 \pm 18 nm $ with good edge quality with the power density varying from $0,57 \times 1012$ to $31 \times 1012$ W/cm$^2$, respectively, are synthesized. Higher-intensity modes of laser processing lead to the formation of cracks and chips on the surface of the material, with lower-intensity processing leading to the appearance of melting edges. The obtained structures are characterized using an atomic force microscope. The ablation rate of the silica glass is established.

Keywords: laser ablation, nanostructure, a silica glass, picosecond laser pulses, Shack-Hartmann wavefront sensor.

DOI: https://doi.org/10.18287/2412-6179-2016-40-6-863-870

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Full text: http://www.computeroptics.smr.ru/.../400613.html
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Received: 23.06.2016
Accepted:20.10.2016

Citation: M. A. Zavyalova, “Surface modification of silica glass by pulses of a picosecond laser”, Computer Optics, 40:6 (2016), 863–870

Citation in format AMSBIB
\Bibitem{Zav16}
\by M.~A.~Zavyalova
\paper Surface modification of silica glass by pulses of a picosecond laser
\jour Computer Optics
\yr 2016
\vol 40
\issue 6
\pages 863--870
\mathnet{http://mi.mathnet.ru/co338}
\crossref{https://doi.org/10.18287/2412-6179-2016-40-6-863-870}


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