Effects of the intermolecular interaction on the depolarized rototranslational Raman spectra of hydrogen

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.3036· OSTI ID:6037969

Borysow, A ^[1]; Moraldi, M ^[2]

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1. Physics Department, Michigan Technological University, Houghton, Michigan 49931 (United States)
2. Dipartimento di Fisica, Universita di Firenze, Largo Enrico Fermi 2, I-50-125 Firenze (Italy)

Calculations of the rotational Raman spectra of hydrogen at high gas densities and various temperatures are presented. Both the far wings and the line cores are considered where collisional induction and pressure broadening shape the profiles. The treatment of far wings follows previous calculations which had given encouraging results. In the present work, new components of the collision-induced polarizability have been considered in an attempt to remove the previously observed inconsistencies with existing measurements. The far-wing spectral intensities and the Raman linewidths are computed by using two different intermolecular potentials. It is shown that Raman linewidths are more sensitive to the details of the intermolecular potential than far-wing Raman intensities. Comparison with experimental data does not allow one to determine which of the two potentials is to be preferred over the other.

• OSTI ID: 6037969
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
DEPOLARIZATION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN
INTERMOLECULAR FORCES
LINE BROADENING
NONMETALS
PRESSURE DEPENDENCE
RAMAN SPECTRA
ROTATIONAL STATES
SPECTRA