Spectral and energy parameters of multiband barrier-discharge KrBr excilamps

Autor:	S. M. Avdeev, Victor F. Tarasenko, V. S. Skakun, D. V. Schitz, E. A. Sosnin, M. V. Erofeev, Alexei I. Suslov
Rok vydání:	2008
Předmět:	Materials science Quenching (fluorescence) Statistical and Nonlinear Physics Excimer Diatomic molecule Emission intensity Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Torr Halogen Electrical and Electronic Engineering Atomic physics Coaxial Characteristic energy
Zdroj:	Quantum Electronics. 38:702-706
ISSN:	1468-4799 1063-7818
DOI:	10.1070/qe2008v038n07abeh013600
Popis:	The spectral and energy characteristics of multiband barrier-discharge coaxial KrBr excilamps are studied experimentally at pressures from a few tens of Torr to 0.4 atm. It is shown that an increase in the Br2 concentration reduces the emission intensity of KrBr* molecules with respect to the emission intensity of Br2* molecules and reduces the total emission power of the excilamp. This can be explained by the nonradiative decay of exciplex KrBr* molecules caused by their quenching by molecular bromine. The emission power and efficiency in the Kr:Br2 = 400:1 mixture at a pressure of ≈230 Torr and a discharge gap of 8.5 mm were 4.8 W and 2.4%, respectively.
Databáze:	OpenAIRE
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