title: Atomic absorbers for controlling pulse propagation in resonators.
abstract: We consider pulse propagation through a Fabry-Perot cavity with silver mirrors that contain macroscopic samples of resonant absorbers. We show that the pulse velocity can be tuned from subluminal to superluminal in a strongly coupled atom-cavity system. We delineate the effects of the interplay of cavity and absorbers. We demonstrate the saturation effects of pulse advancement with increasing mirror thickness and atomic damping.
authors.affiliation: School of Physics, University of Hyderabad, Hyderabad 500046, India.
authors.forename: V S C
authors.initials: VS
authors.lastname: Manga Rao
authors.forename: Subhasish
authors.initials: S
authors.lastname: Dutta Gupta
authors.forename: Girish S
authors.initials: GS
authors.lastname: Agarwal