作者: Gil Fanjoux , Jérémy Michaud , Hervé Maillotte , Thibaut Sylvestre
DOI: 10.1103/PHYSREVLETT.100.013908
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摘要: Slow light has attracted a great deal of attention recently because many motivations, ranging from fundamental interests to applications in quantum information such as memories, or optical management by controllable time delay between data packets (network buffering, synchronization) [1]. The main physical origin that leads the slow fast relies on control group velocity signal inducing strong material dispersion medium vicinity frequency signal. This can be achieved different means and materials. In resonant material, change index near resonance decrease which is intimately linked absorption. To remove this detrimental absorption, efficient methods for generating very narrow hole absorption line have been performed using coherence properties atomic media, electromagnetically induced transparency (EIT) ultracold gases [2],