https://doi.org/10.1140/epjd/e2013-40563-9
Regular Article
Double-electromagnetically induced transparency in a Y-type atomic system
1
Department of Physics, University of Oulu,
Box 3000, 90014
Oulu,
Finland
2
Departamento de Física, Universidade Federal de Minas
Gerais, 30123-970
Belo Horizonte,
Brazil
3
Institut Néel-CNRS, BP 166, 25
rue des Martyrs, 38042
Grenoble Cedex 9,
France
a
e-mail: laleh.safari@oulu.fi
Received: 10 September 2013
Received in final form: 18 November 2013
Published online: 4 February 2014
We study the absorption and dispersion properties of a weak tunable probe field in a four-level Y-type atomic system driven by two strong laser (coupling) fields within the framework of density matrix formalism. It is found that the probe absorption profile displays double-electromagnetically induced transparency (double-EIT) and it is shown how to control it by changing the Rabi frequencies as well as the atom field detuning of the coupling fields.
Key words: Optical Phenomena and Photonics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2014