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Published on: April 28, 2022
Nanosecond rapid freezing of liquid benzene under shock compression studied by time-resolved coherent anti-Stokes
Akitaka Matsuda1, Ken-ichi Kondo, Kazutaka G Nakamura
1Materials and Structures Laboratory, Tokyo Institute of Technology, Box R3-10, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan.
Abstract:
Nanosecond time-resolved coherent anti-Stokes Raman spectroscopy is used to investigate the shock-induced liquid-solid phase transition and crystallization of liquid benzene. Temporal evolution of the Raman shift of the ring-breathing and C-H stretching modes is investigated. A metastable supercompressed state and a liquid-solid phase transition are observed under shock compression. Time-resolved Raman spectra reveal that the liquid state is initially a metastable state and rapidly transforms to the solid state within 25 ns under shock compression at 4.2 GPa.

