Studies of Rydberg atomic xenon and molecular hydrogen

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5274679

Wang, L G

The Rydberg states of atomic xenon and molecular hydrogen were studied by laser spectroscopy of a thermal metastable atomic or molecular beam. Both xenon atoms and H/sub 2/ molecules have structured cores, resulting in similarities of their spectra. The existence of metastable states in both systems allows use of the same experimental techniques and almost the same experimental arrangement to carry out studies in both xenon and in H/sub 2/. Using the metastable-beam laser-excitation technique, even-parity bound np(1/2)/sub 1/ and nf(3/2)/sub 1/ Rydberg series in xenon to n = 51 and n = 82, respectively, were observed. Both even- and odd-parity autoionizing Rydberg states were also studied extensively. Unlike most of the previous work done on H/sub 2/, the author observed and measured the bound and autoionizing triplet nd Rydberg states of para-and ortho-H/sub 2/- (previous experimental data on H/sub 2/ were mostly that of p states of singlet H/sub 2/). In studies of Rydberg states in H/sub 2/, he carried out calculations based on a long-range ab initio Hund's case-d model to predict the transition frequencies and to identify observed transition peaks. Ten Rydberg series of more than 400 levels in atomic xenon and seven triplet Rydberg series of 150 levels in molecular hydrogen were observed and measured in this work.

• Research Organization: Ohio State Univ., Columbus (USA)
• OSTI ID: 5274679
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC BEAMS
ATOMS
BEAMS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FLUIDS
GASES
HYDROGEN
LASER SPECTROSCOPY
METASTABLE STATES
MOLECULAR BEAMS
MOLECULES
MULTIPLETS
NONMETALS
RARE GASES
RYDBERG STATES
SPECTROSCOPY
TRIPLETS
XENON