Abstract

The A → X emission of OH at 306.4 nm has been studied in reduced-pressure inductively coupled argon and helium plasmas. Under a variety of conditions of power and flow rate, a comparison of the A state rotational level distributions shows significant differences in the two plasmas. The rotational level distributions are generally nonlinear but can be quantitatively described as the sum of two separate Boltzmann distributions.

Radiance Saturation and Afterglow Emission of High Pressure 20-nsec Spark Channels in Argon and Helium

Heinz Fischer and Wilhelm Schwanzer
Appl. Opt. 8(3) 697-699 (1969)

Pressure effects of helium, neon, and argon on the hyperfine structure of the first doublet of cesium

E. Bernabeu, F. García Peralta, and J. M. Alvarez
J. Opt. Soc. Am. 67(1) 24-27 (1977)

Collision-induced far-infrared absorption in helium-argon mixtures and nitrogen at high pressure

R. P. Lowndes and A. Rastogi
J. Opt. Soc. Am. 67(7) 905-907 (1977)

Vacuum Ultraviolet Emission from High Density Spark Discharges in Argon and Helium

Lothar Michel and Heinz Fischer
Appl. Opt. 11(4) 899-906 (1972)

Pressure Broadening of the Blue Cesium Doublet Produced by Argon and Helium†

Shang-Yi Ch’en and William J. Parker
J. Opt. Soc. Am. 45(1) 22-25 (1955)