Vibrational frequency shifts of fluid nitrogen fundamental and hot band transitions as a function of pressure and temperature

Conference · Sun Jan 01 00:00:00 EST 1989

DOI:https://doi.org/10.1080/08957959008246193· OSTI ID:5871068

Schmidt, S C; Schiferl, D; Zinn, A S; Ragan, D D; Moore, D S

Coherent anti-Stokes Raman scattering (CARS) and spontaneous Raman spectroscopy have been used to obtain vibrational spectra of shock-compressed and static high-pressure fluid nitrogen, respectively. Vibrational frequencies were obtained from the CARS data using a semiclassical model for these spectra. Spontaneous Raman vibrational frequencies were determined by fitting data using a Lorentz shape line. A functional form was found for the dependence of the vibrational frequency on pressure and temperature to 40 GPa and 5000 K, respectively. The result is compared to a recent theoretical model. 6 refs., 2 figs., 1 tab.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5871068
• Report Number(s): LA-UR-89-2335; CONF-890798-7; ON: DE89015268
• Resource Relation: Journal Volume: 4; Journal Issue: 1-6; Conference: AIRAPT and EHPRG international high pressure science and technology conference, Paderborn, Germany, F.R., 17-21 Jul 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NITROGEN
VIBRATIONAL STATES
CRYOGENIC FLUIDS
ENERGY GAP
ENERGY LEVELS
ISOTHERMS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
REGRESSION ANALYSIS
SHOCK WAVES
ELEMENTS
EXCITED STATES
FLUIDS
LASER SPECTROSCOPY
MATHEMATICS
NONMETALS
SPECTRA
SPECTROSCOPY
STATISTICS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
400102 - Chemical & Spectral Procedures