Buffer gas-assisted four-wave mixing resonances in alkali vapor excited by a single cw laser

  • Svetlana Shmavonyan
  • Aleksandr Khanbekyan
  • Alen Khanbekyan
  • Emilio Mariotti
  • Aram V. PapoyanEmail author
Regular Article


We report the observation of a fluorescence peak appearing in dilute alkali (Rb, Cs) vapor in the presence of a buffer gas when the cw laser radiation frequency is tuned between the Doppler-broadened hyperfine transition groups of an atomic D2 line. Based on steep laser radiation intensity dependence above the threshold and spectral composition of the observed features corresponding to atomic resonance transitions, we have attributed these features to the buffer gas-assisted four-wave mixing process.

Graphical abstract


Atomic Physics 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Svetlana Shmavonyan
    • 1
  • Aleksandr Khanbekyan
    • 1
  • Alen Khanbekyan
    • 2
  • Emilio Mariotti
    • 3
  • Aram V. Papoyan
    • 1
    Email author
  1. 1.Institute for Physical ResearchAshtarakArmenia
  2. 2.Department of Physics and Earth SciencesUniversity of FerraraFerraraItaly
  3. 3.Department of Physical SciencesEarth and Environment, University of SienaSienaItaly

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