VISIBLE EMISSION BANDS OF $KXe_{n}$ POLYATOMIC EXCIPLEXES

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1978

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Ohio State University

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Using Selective laser excitation of a system of K vapor mixed with ∼10 amagats of Xe, we have observed strong emission bands from K(5S) Xe,K(5S)Xe2,K(5S)Xe3 and K(5S)Xe4 molecules, centered near 5220 {\AA}, 5500 {\AA}, 5900 {\AA} and 6400 {\AA} respectively. At low Xe density (<5 amagats) and high temperature (7200 C), the emission is dominated by the K(5S)Xe monoxenide” radiation; while at high Xe density ($>5$ amagats) and low temperatures ($<150^{\circ}\, C$), it is dominated by overlapping K(5S)$Xe_{n}$ polyxenide” radiation. The strong temperature and pressure dependence of the polyxenide band can be described by a sample empirical formula.

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This research was supported by the Amay Research Office (Durham) under contract DAAG29-77-C-0015 and the Joint Services Electronics Program under contract DAAG29-77-C-0019. S. M. Curry has been an Alfred P. Sloan Foundation Fellow (1975-1979), on leave from the University of Texas at Dallas, P.O. Box 688, Richardson, Texas 75080. T. Yabuzaki has been on leave from the Ionosphere Research Laboratory, Kyoto University, Kyoto, Japan, with support from the National Science Foundation under Grant NSF-ENG76-16424. Present address of A. C. Tam: Bell Telephone Laboratories Murray Hill, New Jersey, 07974.""


Author Institution: Columbia Radiation Laboratory Department of Physics, Columbia University

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