The research demonstrates that nanosecond UV laser pulses alter optical properties in diamond, suggesting this method prevents color center formation.
The process of nanoablation of the diamond surface by UV laser pulses of nanosecond duration with a high repetition rate is investigated. Special attention is paid to the change of fluorescent properties of diamond in the irradiation zone. It was found that at a comparable etching rate (10...10 nm/pulse) irradiation by nanosecond pulses does not lead to the generation of color centers (in particular, NV centers) which are produced in significant quantities when exposed to femtosecond pulses. The features of ultrananoablation at low pressures are analyzed and a noticeable change in the optical properties of the diamond surface in the impact zone is noted for the first time, that is associated with the formation of a surface nanorelief and quasi-periodic structures (~100 nm).
No takes yet. Share an insight, caveat, or question.
Pashinin et al. (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: