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

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

OSTI ID:6263278

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: 6263278
• Report Number(s): LA-UR-87-2272; CONF-870753-60; ON: DE87013138
• Resource Relation: Conference: 5. topical conference of the American Physical Society on shockwaves in condensed matter, Monterey, CA, USA, 20 Jul 1987
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
NITROGEN
VIBRATIONAL STATES
OXYGEN
COMPRESSED AIR
IMPACT SHOCK
RAMAN EFFECT
RAMAN SPECTROSCOPY
ULTRAHIGH TEMPERATURE
VERY HIGH PRESSURE
AIR
COMPRESSED GASES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
LASER SPECTROSCOPY
NONMETALS
SPECTROSCOPY
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)