Quantum yields for the luminescence of IBr(D'. -->. A') on photoexcitation in the vacuum ultraviolet region of IBr vapor-inert gas mixtures

Journal Article · Sat Mar 01 04:00:00 EST 1986 · High Energy Chem. (Engl. Transl.); (United States)

OSTI ID:5332637

Bibinov, N K; Vinogradov, I P

The authors present data on the absorption cross-section of IBr in the spectral range 110-200 nm. The photoexcitation of IBr vapor in mixtures with He, Ar, and Xe is investigated. The spectral dependence of the absolute quantum yield for the luminescence of IBr (D'3II/sub 2/ A'/sup 3/II/sub 2/) is determined. The quantum yield is found to reach values of ca 20% in the quasi-continuous absorption region of IBr (transition D/sup 1/..sigma..+..-->..X/sup 1/..sigma../sup +/). One possible reason for low quantum yield of IBr (D'/sup 3/II/sub 2/) may be an interaction between the ionic D/sup 1/..sigma../sup +/) and Rydberg c/sub 6//sup 1/II- and d/sub 6//sup 1/II-states of IBr.

• Research Organization: A.A. Zhdanov Leningrad State Univ.
• OSTI ID: 5332637
• Journal Information: High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 19:5; ISSN HIECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
ABSORPTION SPECTRA
ARGON
BROMIDES
BROMINE COMPOUNDS
DISSOCIATION
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCIMER LASERS
EXCITATION
EXCITED STATES
FAR ULTRAVIOLET RADIATION
FLUIDS
GAS LASERS
GASES
HALIDES
HALOGEN COMPOUNDS
HELIUM
IODINE BROMIDES
IODINE COMPOUNDS
LASER MATERIALS
LASER RADIATION
LASERS
LUMINESCENCE
MATERIALS
NONMETALS
OPTICAL PUMPING
PHOTOLUMINESCENCE
POPULATION INVERSION
PUMPING
QUANTUM EFFICIENCY
RADIATIONS
RARE GASES
RYDBERG STATES
SPECTRA
ULTRAVIOLET RADIATION
VAPORS
VIBRATIONAL STATES
XENON