Vibrational spectroscopy of fluid N/sub 2/ up to 34 GPa and 4400 K

Journal Article · Thu Jan 15 00:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.493· OSTI ID:6972826

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

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 34 GPa and 4400 K. Vibrational frequencies, peak Raman susceptibilities, and Raman linewidths were determined for the fundamental and several excited-state transitions by comparing experimental spectra to synthetic spectra calculated using a semiclassical model for CARS intensities. The question of excited-state populations in the shock compressed state is addressed.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6972826
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 35:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NITROGEN
RAMAN SPECTRA
VIBRATIONAL STATES
COMPRESSION
LINE WIDTHS
LIQUIDS
SHOCK WAVES
VERY HIGH PRESSURE
VERY HIGH TEMPERATURE
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
NONMETALS
SPECTRA
360603* - Materials- Properties