I* (6s 4P) Collisional quenching: Application to the if 491-nm laser

S. B. Hutchison, J. T. Verdeyen, J. G. Eden

Research output: Contribution to journalArticlepeer-review


The room-temperature rate constants for quenching of I* ( 4P) atoms in binary collisions with Ar, Xe, NF3, UF 6, and CF3I have been measured to be ≲2×10 -13, (8.3±0.5)×10-11, (2.6±0.5) ×10-11, (5.8±0.4)×10-10, and (3.8±0.4)×10-10 cm3 sec-1, respectively. These constants were obtained by examining the exponential time decay of the IF (D′→A′) fluorescence in the afterglow of electron beam produced plasmas containing Ar, CF3I, NF3, and the desired quenching gas. Also, further experimental evidence in support of neutral channel formation of IF* via quenching of I* ( 4P) states by fluorine containing molecules in e-beam-pumped Ar/CF3I/NF3 mixtures is presented.

Original languageEnglish (US)
Pages (from-to)4780-4784
Number of pages5
JournalJournal of Applied Physics
Issue number7
StatePublished - 1981

ASJC Scopus subject areas

  • General Physics and Astronomy


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