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Proceedings Paper

Laser-induced ultrafast phase transitions in solids using optical anisotropy
Author(s): Michail B. Agranat; Sergei I. Anisimov; Sergei I. Ashitkov; Vladimir E. Fortov; Alexander V. Kirillin; Petr S. Kondratenko; Alexander V. Kostanovskii
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Paper Abstract

A new method of crystalline order detection in highly absorbing anisotropic crystals is worked out. The method is based on partial transformation of incident p-polarized electromagnetic wave into s-polarized reflected wave due to optical anisotropy. The method makes possible to follow changes of crystalline structure in thin (10-6 - 10-5 cm) surface layers of solids. Using picosecond laser pulses and streak camera 'Agat,' surface melting and evaporation of Zn and C (graphite) are studied. Direct observation of the melting of graphite subjected to picosecond laser pulse is performed. The kinetics of solidification of fused surface layers are studied.

Paper Details

Date Published: 14 September 1998
PDF: 6 pages
Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321516
Show Author Affiliations
Michail B. Agranat, Joint Institute for High Temperatures (Russia)
Sergei I. Anisimov, Landau Institute for Theoretical Physics (Russia)
Sergei I. Ashitkov, Joint Institute for High Temperatures (Russia)
Vladimir E. Fortov, Joint Institute for High Temperatures (Russia)
Alexander V. Kirillin, Joint Institute for High Temperatures (Russia)
Petr S. Kondratenko, Nuclear Safety Institute (Russia)
Alexander V. Kostanovskii, Joint Institute for High Temperatures (Russia)

Published in SPIE Proceedings Vol. 3343:
High-Power Laser Ablation
Claude R. Phipps, Editor(s)

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