We report on the fabrication of graphitic columns induced in single-crystal diamond plates using 100 fs laser pulses at 800 nm wavelength. Different values of laser fluence (0.6-1.2 J/cm2) and graphitization speed (1-100 micrometers/s) were used for the laser treatment. A Raman investigation was performed aimed at evaluating the structural properties of the fabricated columns, showing that a lower laser fluence and a proper choice of graphitization speed may improve the degree of graphite crystallinity, and suppress the residual diamond content.
Raman investigation of femtosecond laser-induced graphitic columns in single-crystal diamond
Girolami Marco;Bellucci Alessandro;Calvani Paolo;Orlando Stefano;Valentini Veronica;Trucchi Daniele Maria
2014
Abstract
We report on the fabrication of graphitic columns induced in single-crystal diamond plates using 100 fs laser pulses at 800 nm wavelength. Different values of laser fluence (0.6-1.2 J/cm2) and graphitization speed (1-100 micrometers/s) were used for the laser treatment. A Raman investigation was performed aimed at evaluating the structural properties of the fabricated columns, showing that a lower laser fluence and a proper choice of graphitization speed may improve the degree of graphite crystallinity, and suppress the residual diamond content.File in questo prodotto:
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