Kinetic spectroscopy in the far vacuum ultraviolet. Part 3.—Oscillator strengths for the 3S, 4S and 5S3S–2p43P2transitions in atomic oxygen

Abstract

Line absorption measurements for ns³S–2p^{4 3}P_J transitions have been made as a function of ground state oxygen O 2p^{4 3}P_J atom concentration. The results gave the following values for the oscillator strengths (ƒ_ik) of the ns³S–2p^{4 3}P₂ transitions of oxygen: (4.5 ± 1.0)× 10^–2(n= 3, λ 130.22 nm); (5.9 ± 1.4)× 10^–3(n= 4, λ 103.92nm); (1.5 ± 0.4)× 10^–3(n= 5, λ 97.65nm). The agreement with the literature of the ƒ-value for n= 3 is good; no previous measurements for the n= 4 and n= 5 transitions appear to have been reported.