Single-pulse coherent Raman spectroscopy in shock-compressed benzene

Technical Report · Sat Jan 01 04:00:00 EST 1983

DOI:https://doi.org/10.2172/5969536· OSTI ID:5969536

Moore, D S; Schmidt, S C; Schiferl, D; Shaner, J W

Single-pulse backwards stimulated Raman and reflected broadband coherent anti-Stokes Raman spectroscopy (BSRC and RBBCARS) have been used to measure the vibrational frequency shifts of the 992 cm/sup -1/ ring-stretching mode of liquid benzene shock-compressed to pressures up to 1.2 GPa. The resulting shifts of approx. 7.5 cm/sup -1//GPa in the dynamic experiments are compared to spontaneous Raman-scattering measurements of heated samples compressed in a diamond-anvil cell. RBBCARS was used to simultaneously measure the ring-stretching mode vibrational frequencies of liquid benzene/liquid perdeuterobenzene mixtures shock-compressed to pressures up to 1.53 GPa. Additional experiments that demonstrate the difficulty of using polarization-sensitive coherent Raman techniques, such as Raman-induced Kerr effect spectroscopy (RIKES), in shock-compressed samples are described.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5969536
• Report Number(s): LA-UR-83-1854; CONF-830763-1; ON: DE83014140
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
AROMATICS
BENZENE
COMPRESSION
DATA
EMISSION
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
LASER SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
PHASE STUDIES
PULSE TECHNIQUES
RAMAN SPECTROSCOPY
SHOCK WAVES
SPECTROSCOPY
STIMULATED EMISSION
VERY HIGH PRESSURE