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Effect of a Two-Dimensional Periodic Dielectric Background on Complete Photonic Band Gap in Complex Square Lattices |
| ZHANG Yan;SHI Jun-Jie |
| State Key Laboratory for Mesoscopic Physics, and School of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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ZHANG Yan, SHI Jun-Jie 2008 Chin. Phys. Lett. 25 144-147 |
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Abstract A two-dimensional photonic crystal model with a periodic square dielectric background is proposed. The photonic band modulation effects due to the two-dimensional periodic background are investigated in detail. It is found that periodic modulation of the dielectric background greatly alters photonic band structures, especially for the E-polarization modes. The number, width and position of the photonic band gaps sensitively depend on the dielectric constants of the two-dimensional periodic background. Complete band gaps are found, and the dependence of the widths of these gaps on the structural and material parameters of the two alternating rods/holes is studied.
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| Keywords:
42.70.Qs
41.90.+e
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Received: 12 June 2007
Published: 27 December 2007
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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41.90.+e
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(Other topics in electromagnetism; electron and ion optics)
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