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Slow Light by Modified Reservoir Induced Transparency with a Non-Singular Density of Modes |
| ZHOU Bo;DU Chun-Guang;LI Shi-Qun |
| Department of Physics, Tsinghua University, Beijing 100084
Key Laboratory of Quantum Information and Measurement (Ministry of Education), Tsinghua University, Beijing 100084 |
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| Cite this article: |
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ZHOU Bo, DU Chun-Guang, LI Shi-Qun 2004 Chin. Phys. Lett. 21 856-859 |
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Abstract We investigate the dispersive property of a Λ-type atomic system embedded in photonic band gap structures. The atomic coherence is established by the structured reservoir which consists of a double-band photonic band gap (PBG) and defect modes. With an atomic density of 7 x 1015 atoms/cm3, the group velocity of a probe laser being detuned far away from the gap is shown to be reduced to 3 x 102m/s near the transparency window associated with the PBG edges and 6 x 103m/s at the transparency window associated with the defect modes, without using any deriving field. The influence of the smoothness of the density of modes and the decay rate of the second ground state of atoms are analysed.
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| Keywords:
42.50.Gy
42.70.Qs
32.80.Qk
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Published: 01 May 2004
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| PACS: |
42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.70.Qs
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(Photonic bandgap materials)
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32.80.Qk
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(Coherent control of atomic interactions with photons)
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