Abstract
Monitoring the amplitude and the delay of arrival of the pressure waves generated during the interaction of laser pulses with YBCO in air, we can determine the vaporization and the ablation thresholds, the etching rate, the change of the acoustic wave velocity and the effect of plasma shielding on the etching rate. The steep increase of the amplitude and the order-of-magnitude increase of the etching rate above the ablation threshold, suggest that the laser–target coupling mechanism changes from (thermal) vaporization below threshold to a rapid solid-to-gas phase transition. The dumping of the acoustic waves following the ablation with successive laser pulses correlates with the evolution of the YBCO high-Tc superconductor surface morphology, which is known to relate to the deposition rate and the surface morphology of pulsed-laser-deposited high-Tc thin films.
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 callMore From: Applied Physics A Materials Science & Processing
Disclaimer: 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.
