Depolarized Rayleigh scattering in normal and para-hydrogen

Journal Article · Sun May 01 04:00:00 EDT 1988 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.454594· OSTI ID:5268335

Moraldi, M; Borysow, A; Frommhold, L

An expression for the shape of pressure-broadened rotational lines is obtained by perturbation techniques which account for the details of binary collisions. This expression is used for a numerical computation of the depolarized far wing of the hydrogen Q/sub 0/(1) line, a Raman line at zero frequency shift, at moderate gas density (1--100 amagat). Agreement of the computed profile with an extraction of this line wing from recent measurements of the depolarized Rayleigh spectra of para- and normal hydrogen is reported in absolute intensity units. The depolarized, collision induced Rayleigh spectra, a background present in these measurements, is shown to be very nearly the same in para- and normal hydrogen.

• Research Organization: Dipartimento di Fisica dell'Universita degli Studi di Firenze ed Unita di Firenze, Gruppo Nazionale di Struttura della Materia, C. N. R., I-50125 Firenze, Italy
• OSTI ID: 5268335
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 88:9; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
COHERENT SCATTERING
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN
LINE BROADENING
LINE WIDTHS
NONMETALS
RAMAN SPECTRA
RAYLEIGH SCATTERING
ROTATIONAL STATES
SCATTERING
SPECTRA