https://doi.org/10.1007/s100530050067
Electromagnetically induced transparency in a RF discharge
1
European Laboratory for Nonlinear Spectroscopy (LENS)
Istituto Nazionale di Fisica della Materia (INFM)
L.go E. Fermi 2, 50125, Firenze, Italia
2
C.S.I.C., Instituto de Estructura de la Materia,
Serrano 123, 28006 Madrid, Spain
3
Dept. of Physics University of Firenze, Firenze, Italia
Corresponding author: a laserspec@fi.infn.it
Received:
1
August
1997
Accepted:
13
October
1997
Published online: 15 January 1998
We report on electromagnetically induced transparency in a radio-frequency discharge of metastable helium atoms. We show that a large effect can be observed in spite of the discharge regime needed to produce the metastable helium and in spite of its Zeeman degeneracy. We discuss the mechanism and the conditions for the observation of such a phenomenon in a helium discharge.
PACS: 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light / 32.80.-t – Photon interactions with atoms / 52.25.Rv – Emission, absorption, and scattering of visible and infrared radiation
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
