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Deactivation of two-photon excited Xe(5[ital p][sup 5]6[ital p],6[ital p][prime],7[ital p]) and Kr(4[ital p][sup 5]5[ital p]) in xenon and krypton

Journal Article · · Journal of Chemical Physics; (United States)
DOI:https://doi.org/10.1063/1.468763· OSTI ID:6601396
; ; ; ; ; ;  [1]
  1. Physics Department, The University of Texas at Austin, Austin, Texas 78712 (United States)
Lifetimes and bimolecular quenching rate constants have been determined for two-photon laser excited states of Xe*(5[ital p][sup 5]6[ital p],5[ital p][sup 5]6[ital p][prime],5[ital p][sup 5]7[ital p]) and Kr*(4[ital p][sup 5]5[ital p]) in krypton and xenon buffer gases. Collisional mixing between Kr*5[ital p][5/2][sub 2] and Kr*5[ital p][5/2][sub 3] in krypton is observed and analyzed using a coupled two-state model to obtain the rate of mixing. The measured rate constants for quenching of Xe*(6[ital p][prime],7[ital p]) by krypton are 15%--20% smaller than those measured previously in xenon while bimolecular rates for the Kr*(5[ital p]) states are an order of magnitude larger in xenon than those in a krypton buffer. Measurements of state-to-state rate constants for deactivation and excitation transfer are also reported for these states in krypton and xenon buffer gases.
OSTI ID:
6601396
Journal Information:
Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 102:5; ISSN JCPSA6; ISSN 0021-9606
Country of Publication:
United States
Language:
English