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

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Abstract

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.

© 2023 The Author(s)

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