Nanosecond rapid freezing of liquid benzene under shock compression studied by time-resolved coherent anti-Stokes Raman spectroscopy.
Nanosecond rapid freezing of liquid benzene under shock compression studied by time-resolved coherent anti-Stokes Raman spectroscopy.
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DOI：
10.1063/1.2165196
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发表时间：
2006-02
期刊：
影响因子：
--
通讯作者：
A. Matsuda;K. Kondo;K. Nakamura
中科院分区：
文献类型：
--
作者：
A. Matsuda;K. Kondo;K. Nakamura
采用纳秒时间分辨相干反斯托克斯拉曼光谱研究了激波诱导液苯的液固相变和结晶过程。研究了环呼吸模式和C-H拉伸模式的拉曼位移的时间演化。在激波压缩下观察到亚稳态超压缩态和液固相变。时间分辨拉曼光谱显示，在4.2 GPa的激波压缩下，液体状态在25 ns内迅速转变为固体状态。
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.