Vibrational spectroscopy of shock-compressed fluid N/sub 2/ and O/sub 2/

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:6195917

Schmidt, S C; Moore, D S; Shaw, M S; Johnson, J D

Single-pulse multiplex coherent anti-Stokes Raman scattering (CARS) was used to observe the vibrational spectra of liquid N/sub 2/ shock-compressed to several pressures and temperatures up to 41 GPa and 5200 K and liquid O/sub 2/ shock-compressed to several pressures and temperatures up to 10 GPa and 1000 K. For N/sub 2/, the experimental spectra were compared to synthetic spectra calculated using a semiclassical model for CARS intensities and estimated vibrational frequencies, peak Raman susceptibilities, and Raman line widths. The question of excited state populations in the shock-compressed state is addressed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6195917
• Report Number(s): LA-UR-87-2228; CONF-870754-2; ON: DE87011730
• Resource Relation: Conference: 11. international AIRAPT conference, Kiev, USSR, 12 Jul 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
NITROGEN
RAMAN SPECTROSCOPY
OXYGEN
LIQUIDS
VIBRATIONAL STATES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
LASER SPECTROSCOPY
NONMETALS
SPECTROSCOPY
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)