Optics and Spectroscopy

, Volume 120, Issue 3, pp 339–344 | Cite as

Electromagnetically Induced Transparency in Potassium Vapors: Features and Restrictions

  • A. Sargsyan
  • P. A. Petrov
  • T. A. Vartanyan
  • D. Sarkisyan
Spectroscopy of Atoms and Molecules


Features of electromagnetically induced transparency (EIT) in potassium vapors at the D1 line of the 39K isotope are studied. EIT resonances with a subnatural width of 3.5 MHz have been recorded upon excitation by two independent narrow-band diode lasers in a 1-cm-long cell filled with a natural mixture of potassium isotopes and buffer gas. The splitting of EIT resonances in potassium vapors in longitudinal and transverse magnetic fields has been studied for the first time. The splitted components also have a subnatural width. The smallness of the coupling factor of the hyperfine structure in 39K atoms leads to a transition to the Paschen—Back regime at relatively weaker magnetic fields than in the case of Cs, Rb, and Na atoms. Practical applications of the phenomena under study are noted. The theoretical model well explains the experiment.


87Rb Electromagnetically Induce Transparency Transverse Magnetic Field 87Rb Atom Longitudinal Magnetic Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • A. Sargsyan
    • 1
  • P. A. Petrov
    • 2
  • T. A. Vartanyan
    • 2
  • D. Sarkisyan
    • 1
  1. 1.Institute for Physical ResearchNational Academy of Sciences of ArmeniaAshtarak-2Armenia
  2. 2.St. Petersburg State University of Information Technologies, Mechanics, and OpticsSt. PetersburgRussia

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