Eur. Phys. J. D 63, 315-325 (2011)
https://doi.org/10.1140/epjd/e2011-20112-6

Regular Article

Polarization method for controlling a sign of electromagnetically-induced transparency/absorption resonances

¹ Institute of Laser Physics SB RAS, pr. Lavrent’eva 13/3, 630090 Novosibirsk, Russia
² Novosibirsk State University, ul. Pirogova 2, 630090 Novosibirsk, Russia
³ Novosibirsk State Technical University, pr. K. Marksa 20, 630092 Novosibirsk, Russia

^a e-mail: LPL@laser.nsc.ru

Received: 18 February 2011
Received in final form: 30 March 2011
Published online: 23 June 2011

Abstract

We propose a new easy method to control a sign of the subnatural resonances of electromagnetically-induced transparency and absorption in the Hanle configuration under counterpropagating light waves. The analytical results for a three-level atomic Λ-scheme are corroborated by numerical calculations for various atomic transitions. The results can be applied in nonlinear optics, optical communications and magnetometry.