Abstract

The lifetime of the A¹Π state of CO has been measured by using a pulsed invertron-excitation source and a delayed-coincidence measurement technique. The fourth positive system was examined to measure this lifetime. Eighteen bands, originating from the upper states υ′ = 0 to 5, were examined at pressures between 500 and 50 mtorr. No pressure dependence was noticed. The transition moment was found to vary and was expanded about the r centroid of the (0,0) transition. Oscillator strengths from this and other experiments are compared.

© 1971 Optical Society of America

Radiative Lifetimes of the A²Π State of CO⁺†

Richard Anderson, Robert Sutherland, and Norman Frey
J. Opt. Soc. Am. 62(10) 1127-1130 (1972)

Radiative Lifetimes of N ii Using N₂⁺ and N⁺ Beams Incident on a Helium Gaseous Target*

Warren B. McCrocklin and Charles E. Head
J. Opt. Soc. Am. 61(5) 619-625 (1971)

Intensity Calibration of a Spectroscopic Detecting System in the 1100–1820- Å Region

Karl H. Becker, Ewald H. Fink, and Arthur C. Allison
J. Opt. Soc. Am. 61(4) 495-498 (1971)

Calibration of Vacuum-Ultraviolet Monochromators by the Molecular Branching-Ratio Technique*

M. J. Mumma and E. C. Zipf
J. Opt. Soc. Am. 61(1) 83-88 (1971)

Radiative Lifetime of the B¹∑⁺ State of CO*

John Rogers and Richard Anderson
J. Opt. Soc. Am. 60(2) 278-279 (1970)