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Proceedings Paper

Quenching of I(2P1/2) by O3 and O(3P)
Author(s): V. N. Azyazov; I. O Antonov; S. Ruffner; M. C. Heaven
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Paper Abstract

Oxygen-iodine lasers that utilize electrical or microwave discharges to produce singlet oxygen are currently being developed. The discharge generators differ from conventional chemical singlet oxygen generators in that they produce significant amounts of atomic oxygen. Post-discharge chemistry includes channels that lead to the formation of ozone. Consequently, removal of I(2P1/2) by O atoms and O3 may impact the efficiency of discharge driven iodine lasers. In the present study we have measured the rate constants for quenching of I(2P1/2) by O(3P) atoms and O3 using pulsed laser photolysis techniques. The rate constant for quenching by O3, 1.8x10-12 cm3 s-1, was found to be a factor of five smaller than the literature value. The rate constant for quenching by O(3P) was 1.2x10-11 cm3 s-1. This was six times larger than a previously reported upper bound, but consistent with estimates obtained by modeling the kinetics of discharge-driven laser systems.

Paper Details

Date Published: 23 February 2006
PDF: 9 pages
Proc. SPIE 6101, Laser Beam Control and Applications, 61011Y (23 February 2006); doi: 10.1117/12.646061
Show Author Affiliations
V. N. Azyazov, Emory Univ. (United States)
I. O Antonov, Emory Univ. (United States)
S. Ruffner, Emory Univ. (United States)
M. C. Heaven, Emory Univ. (United States)

Published in SPIE Proceedings Vol. 6101:
Laser Beam Control and Applications
Steven J. Davis; Alexis V. Kudryashov; Adolf Giesen; Detlef Nickel; Michael C. Heaven; Alan H. Paxton; Vladimir S. Ilchenko; J. Thomas Schriempf, Editor(s)

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