The observation of two-photon optical nutation and free-induction decay is reported. The experimental result, on a two-photon transition in N ${\mathrm{H}}_{3}$ with all relevant parameters known, is shown to be in quantitative agreement with the prediction of the two-photon vector model.The observation of two-photon optical nutation and free-induction decay is reported. The experimental result, on a two-photon transition in N${\mathrm{H}}_{3}$ with all relevant parameters known, is shown to be in quantitative agreement with the prediction of the two-photon vector model.

Physical Review LettersJun 14, 197679 citations

The observation of two-photon optical nutation and free-induction decay is reported. The experimental result, on a two-photon transition in N

{\mathrm{H}}_{3}

with all relevant parameters known, is shown to be in quantitative agreement with the prediction of the two-photon vector model.