Observation of coherent two-photon emission from the first vibrationally excited state of hydrogen molecules

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In this paper, we describe an experiment which was conducted to explore the macro-coherent amplification mechanism using a two-photon emission process from the first vibrationally excited state of the para-hydrogen molecule. Large coherence in the initial state was prepared by the adiabatic Raman method, and the lowest Stokes sideband was used as a trigger field. We observed coherent two-photon emission consistent with the expectation of the Maxwell-Bloch equation derived for the process, whose rate is larger by many orders of magnitude than that of spontaneous emission.

Original languageEnglish
Article number113C01
JournalProgress of Theoretical and Experimental Physics
Issue number11
Publication statusPublished - 2014


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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