Abstract

Fluorescence lifetimes of NO B 2Π 1 2 ( v' = 7) and B 2Π 3 2 ( v' =7)-C 2Π( v' =0) mixed states were measured in a free jet using pulsed tunable VUV laser light. The measured lifetimes of the B 2Π 1 2 state were 389 and 423 ns for J' =0.5 and 1.5, respectively. It was found that lifetimes of the mixed states below the dissociation limit were substantially influenced by the mixing properties of the B and C states, whereas those above the dissociation limit are short because of predissociation.

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