Acoustic Probing of Molten Layer of Titanium Film Heated by an Ultrashort Laser Pulse

P. S. Komarov,E. V. Struleva,S.A. Romashevskiy,S. I. Ashitkov

Frontiers in Optics + Laser Science 2023 (FiO, LS)（2023）

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摘要

Spectral interferometry is used to study picosecond acoustic pulse propagation in a submicron titanium film heated by femtosecond laser pulse through a glass substrate. The melting depth was estimated from a moment of spall pulse arrival, formed due to cavitation in melt during tensile stress relaxation.

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