Relative transition probabilities of 81 infrared ArI lines in the wavelength range from 9000-24 000 Å have been measured with a wall-stabilized arc operating in argon at atmospheric pressure. The large majority of the lines from the 4<i>p</i>-5<i>s</i> and 4<i>p</i>-3<i>d</i> transition arrays has been observed and the measurements are consistent with the <i>J</i>-file-sum rule. The data have been normalized to an absolute scale by utilizing the results of other recent arc and lifetime experiments.
© 1969 Optical Society of America
W. L. WIESE, J. M. BRIDGES, R. L. KORNBLITH, and D. E. KELLEHER, "Transition Probabilities for Prominent Ar I Lines in the Near Infrared," J. Opt. Soc. Am. 59, 1206-1208 (1969)