Comment on ''Realization of a bipolar atomic Šolc filter in the cavity-QED microlaser''

International audienceSeo et al. [Phys. Rev. A 81, 053824 (2010)] have studied the interaction of a TEM10 mode in a cavity-QED microlaser. They claim that this scheme represents an experimental realization of an atomic Šolc filter proposed by Hong et al. [Opt. Express 17, 15455 (2009)]. Even if the regime of interaction considered is nonperturbative, we point out that this statement is valid only for a small range of intensity and is misleading in the general case of an arbitrarily strong field where the effect is related to the nonadiabatic jump phenomenon [G. S. Vasilev and N. V. Vitanov, Phys. Rev. A 73, 023416 (2006)]

Erratum: Propagation of light pulses in a fast-light medium: Interplay between gain and dispersion [Phys. Rev. A 80, 055802 (2009)]

see aloso : DOI : 10.1103/PhysRevA.80.055802International audienc

Comment on "Control of the Goos-Hänchen shift using a duplicated two-level atomic medium"

International audienceThe recent paper by Ziauddin and Qamar [Phys. Rev. A 85, 055804 (2012)] proposes control of the Goos-Hänchen shift of a Gaussian field incident on a cavity containing duplicated two-level atoms. This control relies on phase control of the optical response of the intracavity medium that has been demonstrated earlier [Phys. Rev. Lett. 101, 213601 (2008)]. We show that the authors make an incorrect use of the results of this latter paper