Abstract
A technology of deposition of a single-layer PbF2 coating, antireflecting for the CO2 laser radiation, on diamond substrates is developed. As substrates, use is made of plates of polycrystalline CVD diamond. The transmission coefficient of diamond plates with two-side coating attains 98.5 % – 99 %. The measured laser-induced damage threshold of such plates under normal environment conditions for the pulsed (τ ∼ 100 ns) and continuous-wave radiation of CO2 lasers amounts to 250 and 4 MW cm–2, respectively. These values are comparable with the thresholds of the diamond substrate damage. The increase in the damage threshold of the AR coating under continuous-wave irradiation to 5.5 MW cm–2 is found in the case of preliminary multiple irradiation of samples by weaker laser pulses. This effect can be explained by the pollutant removal from the surface of the film without its damage (laser cleaning effect).The bibliography includes 28 references.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
