Raman Studies of Structural Changes in Diamond-like Carbon Films on Si Induced by Ultrafast Laser Ablation
Abstract:In this study, the diamond-like carbon (DLC), a tetrahedral amorphous carbon sample deposited on Si, was irradiated using a picosecond laser. We evaluated the picosecond-laser-induced structural and morphological changes in DLC using micro-Raman spectroscopy via line measurements. We obtained the spatial distribution of the structure and morphology of DLC on Si by regression analysis of the Raman spectra. The photo-induced crater could be categorized into four regions: peripheral, morphological-change, structu… Show more
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