| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Transmission Properties of One-Dimensional Photonic Crystals Containing Anisotropic Metamaterials |
ZHANG Li-Wei1,2, YAN Ling-Ling1, ZHAO Yu-Huan1, LIU Li2 |
| 1School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000 2Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
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| Cite this article: |
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ZHANG Li-Wei, YAN Ling-Ling, ZHAO Yu-Huan et al 2010 Chin. Phys. Lett. 27 064101 |
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Abstract The transmission properties of one-dimensional photonic crystals (1DPCs) containing anisotropic metamaterials are theoretically studied. It is shown that the 1DPCs can possess a similar zero average index (zero-n）gaps, the edges of zero-n gap are weakly dependent on the incident angles, scale length and the polarization of the electromagnetic wave. When an impurity is introduced, a defect mode appears inside the zero-n gap with a very weak dependence on incident angles and scaling. It is found that in such photonic crystals, a transmitted Gaussian pulse with its carrier frequency lying in the lower gap edge, in the defect mode and in the bandgap, can experience a positive or negative group delay and hence a subluminal, ultraslow or superluminal propagation with small distortions. These properties of the photonic crystals have potential applications in the transfer of information.
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| Keywords:
41.20.Jb
42.70.Qs
42.25.Bs
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Received: 18 December 2009
Published: 25 May 2010
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| PACS: |
41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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42.70.Qs
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(Photonic bandgap materials)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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