Abstract
Collisional coupling between the electronic excited states of I2 that are responsible for the green and ultraviolet (D′ → A′) bands of the molecule (centered at 506 and 342 nm, respectively) has been studied in electron-beam-pumped mixtures of argon and hydrogen iodide (HI). The dependence of the temporal decay of the green and UV fluorescence waveforms on the buffer-gas pressure demonstrates that the two bands do not originate from a common upper state. The interdependence of the two bands, however, is clear from the disappearance of gain at 506 nm, when an optical cavity having a high Q at 342 nm is installed around the excited medium (IUV ∼ 30 MW cm−2). Also, the peak intensity of the UV band is suppressed by more than 40% when a green dye-laser pulse (λ = 503 nm, I ≥ 5 MW cm−2) is directed along the axis of the active medium.
© 1985 Optical Society of America
Full Article | PDF ArticleCorrections
K. P. Killeen and J. G. Eden, "Coupling of the green (506-nm) and ultraviolet (342-nm) emission bands of I2: erratum," J. Opt. Soc. Am. B 2, 1955-1955 (1985)https://opg.optica.org/josab/abstract.cfm?uri=josab-2-12-1955
More Like This
K. P. Killeen and J. G. Eden
J. Opt. Soc. Am. B 2(12) 1955-1955 (1985)
T. J. McGee, J. Burris, W. S. Heaps, G. Miller, and T. J. McIlrath
J. Opt. Soc. Am. B 2(3) 414-416 (1985)
P. D. Kleiber, A. M. Lyyra, S. P. Heneghan, and W. C. Stwalley
J. Opt. Soc. Am. B 2(4) 522-526 (1985)