Transient-nutation effects in time-resolved infrared-microwave double resonance of ammonia

J. M. Levy, J. H.S. Wang, S. G. Kukolich, J. I. Steinfeld

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Transient nutation is observed in the time-resolved infrared-microwave double resonance of ammonia. This behavior is described by a Bloch equation for relaxation of the ammonia inversion levels, with an effective T2 cross section of 400 ± 50 A2. A similar effect was produced by rapidly switching the Stark field applied to the molecules, which suddenly brings them into resonance with the cw microwave radiation.

Original languageEnglish (US)
Pages (from-to)395-398
Number of pages4
JournalPhysical review letters
Issue number7
StatePublished - Jan 1 1972


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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