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Lifetime and collisional quenching measurements of XeF*(B) by photolysis of XeF2

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Abstract

By photolyzing XeF2 using ArCl* 175-nm radiation, the spontaneous radiative lifetime of the XeF(BX) band has been measured to be 14.25 ± 0.2 nsec. Also, the rates of two-body collisional deactivation of the XeF(B) state by Ne, Ar, and XeF2 have been determined to be 7.7 × 10−13 cm3 sec−1, 4.9 × 10−12 cm3 sec−1, and 2.6 × 10−10 cm3 sec−1, respectively. A three-body quenching rate of 7.2 × 10−32 cm6 sec−1 was found for Ar. The large two- and three-body quenching rates of XeF* by Ar suggest that Ne may be preferable to Ar as a diluent in high-pressure XeF (350-nm) laser mixtures.

© 1978 Optical Society of America

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