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Synthesis of super-dense phase of aluminum under extreme pressure and temperature conditions created by femtosecond laser pulses in sapphire

Mizeikis, Vygantas; Vailionis, Arturas; Gamaly, Eugene G; Yang, Wenge; Rode, Andrei V; Juodkazis, Saulius

Description

We describe synthesis of a new super-dense phase of aluminum under extreme pressure and temperature conditions created by laser-induced microexplosions in sapphire. Micro explosions in sub-micrometer sized regions of sapphire were induced by tightly-focused femtosecond laser pulses with a temporal length of ∼ 100 fs and an energy of ∼ 100 nJ. Fast, explosive expansion of photogenerated high-density plasma created strong heating and pressure transients with peak temperature and pressure of ∼ 105...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Conference paper
URI: http://hdl.handle.net/1885/69140
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.906946

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