Observation of coherence oscillations of single ensemble excitations in methanol

Seth Meiselman, Offir Cohen, Matthew F. DeCamp, Virginia Lorenz

Research output: Contribution to journalArticlepeer-review


We demonstrate coherence measurements of single-photon-level collective excitations of vibrational states using transient coherent spontaneous Raman scattering in liquid methanol. We observe the decay of the 1033 cm-1 mode and coherence oscillations due to simultaneous excitation of the 2834 and 2944 cm-1 modes. The coherence life-times and oscillation frequencies agree with frequency-domain line-shape measurements and femtosecond coherent anti-Stokes Raman scattering measurements. The demonstrated technique is complementary to and, in some cases, simpler than traditional stimulated spectroscopy techniques in that it does not require more than one laser and is free of nonresonant background.

Original languageEnglish (US)
Pages (from-to)2131-2135
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Issue number9
StatePublished - Sep 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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