Abstract

AbstractChemically clean etching of thermodynamically metastable diamond using a 500 femtosecond (fs), 248 nm KrF excimer laser is reported. The experimental results, characterized by micro-Raman spectroscopy indicate that unlike nanosecond (ns) pulsed laser processing of diamond, fs laser irradiation of the surface does not generate any graphite or amorphous carbon residues. Microstructural analysis of the fs pulsed laser etched surface indicates streaks.

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