特集
レーザー衝撃圧縮を用いた高圧相転移ダイナミクスの研究
2007 年 17 巻 4 号 p. 316-320
詳細
2007 年 17 巻 4 号 p. 316-320
Dynamics of materials under laser shock compression has been studied by using nanosecond time-resolved Raman spectroscopy. Laser shock is induced by focusing 10-ns pulse laser and Raman scattering is induced by 25-ps pulse laser. Liquid-solid phase transition of benzene under shock compression at 3.7 GPa has been observed within 20 ns by using time-resolved coherent anti-Stokes Raman scattering. Structural phase transition of polytetrafluoroethylene from spiral structure to planar zigzag structure has been observed at 1 GPa within 10 ns.
