Abstract

We have developed new techniques based on four-wave mixing for the accurate determination of oscillator strengths and applied them to measure 6¹S - n^1,3P and 7¹S - n^1,3P (n = 6 - 13) matrix elements of atomic Hg. For transitions from the 6¹S ground state, index matching conditions were used to determine refractive indicies and thus f-values, while the frequency dependence of the nonlinear susceptibility was used to deduce matrix elements for transitions involving 7¹S. For all measurements, two-photon resonance with the 7¹S state was maintained.

© 1986 Optical Society of America