Nanosecond rapid freezing of liquid benzene under shock compression studied by time-resolved coherent anti-Stokes Raman spectroscopy.
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.
Materials and Structures Laboratory, Tokyo Institute of Technology, Box R3-10, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan.
Akitaka
A
Matsuda
Ken-ichi
K
Kondo
Kazutaka G
KG
Nakamura