Frequency dependence of coherently amplified two-photon emission from hydrogen molecules

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We investigate how the efficiency of coherently amplified two-photon emission depends on the frequency of one of the two emitted photons, namely the signal photon. This is done over the wavelength range of 5.048-10.21 μm by using the vibrational transition of parahydrogen. The efficiency increases with the frequency of the signal photon. Considering experimental errors, our results are consistent with the theoretical prediction for the present experimental conditions. This study is an experimental demonstration of the frequency dependence of coherently amplified two-photon emission, and also presents its potential as a light source.

Original languageEnglish
Article number063827
JournalPhysical Review A
Issue number6
Publication statusPublished - Dec 19 2017


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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