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Opt Express. 2010 Jul 19;18(15):15591-6. doi: 10.1364/OE.18.015591.

Controlled light-pulse propagation via dynamically induced double photonic band gaps.

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  • 1Key Lab of Coherent Light and Atomic and Molecular Spectroscopy of Ministry of Education, College of Physics, Jilin University, Changchun 130023, China.


We analyze the optical response of a standing-wave driven four-level atomic system with double dark resonances. Fully developed double photonic band gaps arise as a result of periodically modulated refractive index within the two electromagnetically induced transparency widows. We anticipate that the dynamically induced band gaps can be used to coherently control the propagation of light-pulses with different center frequencies and may have applications in all-optical switching and routing for quantum information networks.

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