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.
© 2004 Optical Society of America
(230.4170) Optical devices : Multilayers
(260.2030) Physical optics : Dispersion
(270.5530) Quantum optics : Pulse propagation and temporal solitons
(350.5500) Other areas of optics : Propagation
V. S. C. Manga Rao, SubhasishDutta Gupta, and Girish S. Agarwal, "Atomic absorbers for controlling pulse propagation in resonators," Opt. Lett. 29, 307-309 (2004)