We study a four-level double-Λ system with spontaneously generated coherence driven by a standing-wave coupling field. It is found that two well-developed photonic bandgaps with reflectivities of about 90% can be generated on the probe resonance in the presence of maximal spontaneously generated coherence. The induced double photonic bandgaps become, however, severely malformed when spontaneously generated coherence vanishes. Dynamic control of the double photonic bandgaps may be exploited to achieve a novel two-port double-channel routing scheme for weak light signals in quantum networks.
© 2010 Optical Society of America
Original Manuscript: December 11, 2009
Manuscript Accepted: January 14, 2010
Published: February 25, 2010
Jin-Wei Gao, Yan Zhang, Nuo Ba, Cui-Li Cui, and Jin-Hui Wu, "Dynamically induced double photonic bandgaps in the presence of spontaneously generated coherence," Opt. Lett. 35, 709-711 (2010)