Temperature determination in shocked condensed materials using Raman scattering

摘要

The use of time-resolved Raman scattering measurements to determine temperature in shocked materials is demonstrated. Experimental data were obtained by monitoring the, stokes and antistokes intensities of the 460 cm↑(-1) vibrational mode. at 50 ns intervals, in liquid carbon tetrachloride shocked to 12 GPa using step wise loading. The ratio of antistokes to stokes intensities changes in a pronounced manner with increasing pressure. Procedures to obtain precise temperatures are outlined, and improvements for future work are indicated. # 1997 American Institute of Physics. S0003-6951 (97)01408-3