Coherent and spontaneous Raman spectroscopy in shocked and unshocked liquids
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 Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5316518
- Report Number(s):
- LA-UR-85-2964; CONF-8508119-1; ON: DE85017543
- Resource Relation:
- Conference: NATO advanced study institute: advances in chemical reaction dynamics, Iraklion, Crete, 25 Aug 1985; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Single-pulse, broad-band coherent anti-Stokes Raman spectroscopy of nitromethane within a diamond anvil cell
Coherent anti-Stokes Raman scattering in benzene and nitromethane shock-compressed to 10 GPa
Related Subjects
BENZENE
COMPRESSION
ENERGY TRANSFER
MOLECULAR STRUCTURE
RAMAN SPECTRA
NITROMETHANE
EXPERIMENTAL DATA
HALOGENATED ALIPHATIC HYDROCARBONS
LIQUIDS
PRESSURE DEPENDENCE
RAMAN SPECTROSCOPY
SCATTERING
SHOCK WAVES
VERY HIGH PRESSURE
AROMATICS
CHEMICAL EXPLOSIVES
DATA
EXPLOSIVES
FLUIDS
HYDROCARBONS
INFORMATION
LASER SPECTROSCOPY
NITRO COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SPECTRA
SPECTROSCOPY
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Weaponry
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