High-resolution spectroscopy of molecular hydrogen in the extreme ultraviolet region

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.206· OSTI ID:6745695

Rothschild, M; Egger, H; Hawkins, R T; Bokor, J; Pummer, H; Rhodes, C K

We report high-resolution spectroscopy of the D /sup 1/Pi/sub u/, D'' /sup 1/Pi/sub u/, and B'' /sup 1/ ..sigma../sup +//sub u/ states in H/sub 2/, HD, and D/sub 2/, performed in absorption in the vicinity of 83 nm. Predissociative widths as narrow as 0.3 cm/sup -1/ have been measured, and profile analyses based on the theory of Fano are performed on these predissociated states. The importance of overlap integrals in the predissociation of B'' is shown, and the absorption cross section sigma7.2=(plus-or-minus0.7) x 10/sup -16/ cm/sup 2/ for the B''reverse arrowX(2,0) is determined. Anomalous behavior observed in the D (v=5) states of D/sub 2/ is analyzed in terms of an accidental perturbation by the D'' (v=0) states.

• Research Organization: Department of Physics, University of Illinois at Chicago Circle, P.O. Box 4348, Chicago, Illinois 60680
• OSTI ID: 6745695
• Journal Information: Phys. Rev., A; (United States), Vol. 23:1
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DEUTERIUM
ABSORPTION SPECTRA
ULTRAVIOLET SPECTRA
HYDROGEN
HYDROGEN DEUTERIDE
LINE WIDTHS
DEUTERIDES
DEUTERIUM COMPOUNDS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NONMETALS
NUCLEI
ODD-ODD NUCLEI
SPECTRA
STABLE ISOTOPES
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory