Coherent and spontaneous Raman spectroscopy in shocked and unshocked liquids

Conference · Mon Dec 31 23:00:00 EST 1984

DOI:https://doi.org/10.1007/978-94-009-4734-4_26· OSTI ID:5316518

Schmidt, S C; Moore, D S; Schiferl, D; Chatelet, M; Turner, T P; Shaner, J W; Shampine, D L; Holt, W T

Coherent and non-coherent Raman spectroscopy is being used to study the structure and energy transfer in molecular liquids at high pressures. Stimulated Raman scattering, coherent anti-Stokes Raman scattering, and Raman induced Kerr effect scattering measurements have been performed in liquid benzene and liquid nitromethane shocked to pressures up to 11 GPa. Frequency shifts were observed for the 992 cm/sup -1/ ring stretching mode of benzene and the 920 cm/sup -1/ CN stretching mode of nitromethane. Results of these dynamic experiments are compared to spontaneous Raman scattering measurements made in a high temperature diamond anvil cell. Also, a picosecond infrared pump/spontaneous anti-Strokes Raman probe experiment is being used to measure CH stretch vibrational relaxation times in liquid halogenated methanes statically compressed to a few tenths GPa. 87 refs., 17 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5316518
• Report Number(s): LA-UR-85-2964; CONF-8508119-1; ON: DE85017543
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
AROMATICS
BENZENE
CHEMICAL EXPLOSIVES
COMPRESSION
DATA
ENERGY TRANSFER
EXPERIMENTAL DATA
EXPLOSIVES
FLUIDS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
LASER SPECTROSCOPY
LIQUIDS
MOLECULAR STRUCTURE
NITRO COMPOUNDS
NITROMETHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PRESSURE DEPENDENCE
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SCATTERING
SHOCK WAVES
SPECTRA
SPECTROSCOPY
VERY HIGH PRESSURE