Abstract

Using a single-mode pulsed laser we have measured autoionizing lifetimes for the 3p′ ³D states of atomic oxygen by measuring the dependence of ionization on the fluence of light driving the 3s′ ³D−3p′ ³D transition. From the frequency of the Rabi oscillations we deduce transition strengths, and from the modulation depth we calculate ionization lifetimes. These are to our knowledge the first measurements of these quantities for these transitions.

© 1991 Optical Society of America

Spectroscopic decay-rate measurements below the laser linewidth

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