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Laser absorption spectroscopy of ternary gas mixture of He-Ne-Xe in External Electrode Fluorescent Lamp (EEFL)  

Jeong, S.H. (Charged Particle Bean and Plasma Lab./PDP Research Center Department of Electrophysics, Kwangwoon University)
Oh, P.Y. (Charged Particle Bean and Plasma Lab./PDP Research Center Department of Electrophysics, Kwangwoon University)
Lee, J.H. (Charged Particle Bean and Plasma Lab./PDP Research Center Department of Electrophysics, Kwangwoon University)
Cho, G.S. (Charged Particle Bean and Plasma Lab./PDP Research Center Department of Electrophysics, Kwangwoon University)
Choi, E.H. (Charged Particle Bean and Plasma Lab./PDP Research Center Department of Electrophysics, Kwangwoon University)
Publication Information
Journal of the Korean Vacuum Society / v.15, no.6, 2006 , pp. 576-580 More about this Journal
Abstract
Mercury-free lamp, external electrode fluorescent lamp (EEFL) which includes the xenon gas, is now going on the research for the replacement of mercury lamp. The densities of excited xenon atom in the $1s_4$ resonance state and the $1s_5$ metastable state are investigated in the EEFL by a laser absorption spectroscopy under various gas pressures. We have measured the absorption signals for both $1s_4$ resonance and the $1s_5$ metastable state in the EEFL by varying the discharge currents for a given pressure. This basic absorption characteristic is very important for improvement of the VUV luminous efficiency of the EEFL as well as plasma display panel.
Keywords
Laser; Absorption spectroscopy; EEFL; Excited atoms density; Metastable state; Resonance state;
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