Measurement of collision-induced shift and broadening of the ultraviolet transitions of OH
Journal Article
·
· J. Chem. Phys.; (United States)
Using a cw tunable laser, absorption measurements were made to determine for the first time the shift and broadening of the ultraviolet transitions of OH induced by collisions with molecular nitrogen and oxygen. Similar measurements were also made for collisions with air and inert gases He, Ne, Ar, and Kr. Both the shift and broadening due to these collisions were found to depend linearly upon pressures in the range from 50 Torr up to 1 atm. The homogeneous linewidth for the P/sub 1/(2) transition of OH in ambient air is determined to be (0.20 +- 0.005) cm/sup -1/. Results with Ar and Kr show contributions not accounted for by the polarizability of the colliding species.
- Research Organization:
- Physics Department, University of Michigan, Ann Arbor, Michigan 48109
- OSTI ID:
- 5837622
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 82:7; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
AIR
ARGON
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
HELIUM
HYDROXYL RADICALS
KRYPTON
LINE BROADENING
LINE WIDTHS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NEON
NITROGEN
NONMETALS
OXYGEN
PHYSICAL PROPERTIES
POLARIZABILITY
RADICALS
RARE GASES
SPECTRA
SPECTRAL SHIFT
ULTRAVIOLET SPECTRA
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
AIR
ARGON
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
HELIUM
HYDROXYL RADICALS
KRYPTON
LINE BROADENING
LINE WIDTHS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NEON
NITROGEN
NONMETALS
OXYGEN
PHYSICAL PROPERTIES
POLARIZABILITY
RADICALS
RARE GASES
SPECTRA
SPECTRAL SHIFT
ULTRAVIOLET SPECTRA