Abstract

Radiative lifetimes of rovibronic levels of the B′ ² Δ state of NO (from υ′ = 0,…,8) have been obtained along with those of the perturbing levels F²Δ(υ′ = 0,1,2) and N²Δ(υ′ = 0). The resolution (∼0.1 cm^–1) and intensity of the coherent tunable VUV source permitted excitation of individual rotational levels and measurement of corresponding fluorescence intensity. Lifetimes for υ′ = 0,…,8 levels of the B′ ² Δ state were found to be in the range τ₀ ∼220 ± 20 nsec, which is approximately twice the values reported for electron-excitation experiments.

© 1981 Optical Society of America

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